DELL C2422HE 24 Video Conferencing Monitor User Guide
- June 9, 2024
- Dell
Table of Contents
C2422HE 24 Video Conferencing Monitor
Dell C2422HE Dell C2422HE WOST Dell C2722DE Dell C3422WE Curved Video
Conferencing Monitor
User’s Guide
Model: C2422HE/C2422HE WOST/C2722DE/C3422WE Regulatory model:
C2422HEt/C2722DEt/C3422WEt
NOTE: A NOTE indicates important information that helps you make better use of
your computer. CAUTION: A CAUTION indicates potential damage to hardware or
loss of data if instructions are not followed. WARNING: A WARNING indicates a
potential for property damage, personal injury, or death.
Copyright © 2020 – 2022 Dell Inc. or its subsidiaries. All rights reserved.
Dell, EMC, and other trademarks are trademarks of Dell Inc. or its
subsidiaries. Other trademarks may be trademarks of their respective owners.
Reproduction of these materials in any manner whatsoever without the written
permission of Dell Inc. is strictly forbidden. Trademarks used in this text:
Dell and the DELL logo are trademarks of Dell Inc.; Microsoft and Windows are
either trademarks or registered trademarks of Microsoft Corporation in the
United States and/or other countries. ENERGY STAR is a registered trademark of
the U.S. Environmental Protection Agency. As an ENERGY STAR partner, Dell Inc.
has determined that this product meets the ENERGY STAR guidelines for energy
efficiency. Other trademarks and trade names may be used in this document to
refer to either the entities claiming the marks and names or their products.
Dell Inc. disclaims any proprietary interest in trademarks and trade names
other than its own. 2022 02 Rev. A03
Contents
Safety instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6 About your monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7
Package contents . . . . . . . . . . . . . . . . . . . . . . . . . 7 Product
features . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Identifying
parts and controls. . . . . . . . . . . . . . . . . . 10
Front view. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 10 Back view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . 12 Bottom view . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . 13
Monitor specifications. . . . . . . . . . . . . . . . . . . . . . 14
Resolution specifications . . . . . . . . . . . . . . . . . . . . . . . . . .
17 Preset display modes. . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 18 DP Multi-Stream Transport (MST) Modes . . . . . . . . . . . . . . . . .
21 USB-C Multi-Stream Transport (MST) Modes . . . . . . . . . . . . . . . 21
Unified Communications (UC) Platform Compatibility List . . . . . . . .22
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . .
.23 Webcam microphone specifications . . . . . . . . . . . . . . . . . . .
.24 Speaker Specifications. . . . . . . . . . . . . . . . . . . . . . . . . .
. .24 Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . .
. . .24 Environmental characteristics . . . . . . . . . . . . . . . . . . . .
. . . . 27 Pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . .28
Plug-and-Play . . . . . . . . . . . . . . . . . . . . . . . . . . 36 LCD
monitor quality and pixel policy . . . . . . . . . . . . . . 36 Ergonomics . .
. . . . . . . . . . . . . . . . . . . . . . . . . 37 Handling and moving your
display. . . . . . . . . . . . . . . . 39 Maintenance guidelines . . . . . . .
. . . . . . . . . . . . . . 40
Cleaning your monitor . . . . . . . . . . . . . . . . . . . . . . . . . . .
.40
Setting up the monitor . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Connecting the stand . . . . . . . . . . . . . . . . . . . . . . 41 Using the
tilt, swivel, and vertical extension . . . . . . . . . . 44
Contents | 3
Tilt, swivel and vertical extension . . . . . . . . . . . . . . . . . . . . .
.44
Rotating the Display (C2422HE/C2722DE only) . . . . . . . . 45 Configuring the
display settings on your computer after rotation (C2422HE/C2722DE only) . . .
. . . . . . . . . . . . 46 Operating the monitor webcam . . . . . . . . . . .
. . . . . . 47 Connecting your monitor . . . . . . . . . . . . . . . . . . . .
48 Dell Power Button Sync (DPBS) . . . . . . . . . . . . . . . . 52
Connecting the monitor for DPBS for the first time . . . . . . . . . . . .54
Using DPBS function . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.55 Connecting the monitor for USB-C Multi-Stream Transport (MST) function
(C2422HE/C2722DE only) in DPBS mode . . . . . . . . . . . . .57 Connecting the
monitor for USB-C in DPBS mode . . . . . . . . . . . . .58
Organizing your cables . . . . . . . . . . . . . . . . . . . . . 60 Securing
your monitor using Kensington lock (optional) . . . 60 Removing the monitor
stand . . . . . . . . . . . . . . . . . . 61 Wall mounting (Optional) . . . .
. . . . . . . . . . . . . . . . 62
Operating the monitor . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Power on the monitor . . . . . . . . . . . . . . . . . . . . . . 63 Using the
joystick control . . . . . . . . . . . . . . . . . . . . 63 Using the rear-
panel controls . . . . . . . . . . . . . . . . . . 64 Using the OSD lock
function . . . . . . . . . . . . . . . . . . 65
Front-panel button . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.68
Using the On-Screen Display (OSD) Menu . . . . . . . . . . . 69
Accessing the menu system . . . . . . . . . . . . . . . . . . . . . . . . .69
OSD warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . .84
Setting the maximum resolution. . . . . . . . . . . . . . . . . . . . . . .89
Setting the KVM USB Switch . . . . . . . . . . . . . . . . . . . . . . . .90
Setting the Auto KVM . . . . . . . . . . . . . . . . . . . . . . . . . . . .93
Setting up Windows Hello . . . . . . . . . . . . . . . . . . . . 95 Setting up
the monitor webcam as default setting. . . . . . . 99 Setting up the monitor
speaker as default setting . . . . . . . 103
4 | Contents
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
106
Self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106 Built-
in diagnostics . . . . . . . . . . . . . . . . . . . . . . . 107 Common
Problems. . . . . . . . . . . . . . . . . . . . . . . . 108 Product specific
problems . . . . . . . . . . . . . . . . . . . 110 Microsoft® Teams® / Skype
for Business® specific problems . 118 Universal Serial Bus (USB) specific
problems . . . . . . . . . 120
Appendix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 121
FCC notices (U.S. only) and other regulatory information . . . 121 Contacting
Dell . . . . . . . . . . . . . . . . . . . . . . . . . 121 EU product database
for energy label and product information sheet . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . 121
Contents | 5
Safety instructions
WARNING: Use of controls, adjustments, or procedures other than those
specified in this documentation may result in exposure to shock, electrical
hazards, and/or mechanical hazards. · Place the monitor on a solid surface and
handle it carefully. The screen is fragile
and can be damaged if dropped or hit sharply. · Always be sure that your
monitor is electrically rated to operate with the AC
power available in your location. · Keep the monitor in room temperature.
Excessive cold or hot conditions can have
an adverse effect on the liquid crystal of the display. · Do not subject the
monitor to severe vibration or high impact conditions. For
example, do not place the monitor inside a car trunk. · Unplug the monitor
when it is going to be left unused for an extended period of
time. · To avoid electric shock, do not attempt to remove any cover or touch
the inside
of the monitor. For information on safety instructions, see the Safety,
Environmental, and Regulatory Information (SERI).
6 | Safety instructions
About your monitor
Package contents
Your monitor ships with the components shown in the table below. If any
component is missing, contact Dell. For more information, see Contact Dell.
NOTE: Some components may be optional and may not ship with your monitor. Some
features may not be available in certain countries.
Display
Stand riser
Stand base Power cable (varies by country)
DisplayPort cable (DisplayPort to DisplayPort)
About your monitor | 7
USB 3.2 Gen 1 1.8 M Type-A to Type-B upstream cable
USB-C Gen 1 1.8 M cable (C to C) (C2422HE/C3422WE only)
USB-C Gen 2 1.0 M cable (C to C) (C2722DE only)
· Quick Setup Guide · Safety, Environmental, and Regulatory
Information
Product features
The Dell C2422HE/C2722DE/C3422WE monitor has an active matrix, Thin-Film
Transistor (TFT), Liquid Crystal Display (LCD), and LED backlight. The monitor
features include:
· C2422HE: 60.47 cm (23.8 in.) active area display (Measured diagonally) 1920
x 1080 (16:9) resolution, plus full-screen support for lower resolutions.
· C2722DE: 68.47 cm (27.0 in.) active area display (Measured diagonally) 2560
x 1440 (16:9) resolution, plus full-screen support for lower resolutions.
· C3422WE: 86.71 cm (34.14 in.) active area display (Measured diagonally) 3440
x 1440 (21:9) resolution, plus full-screen support for lower resolutions.
· Wide viewing angles with 99% sRGB color. · C2422HE/C2722DE:Tilt, swivel,
pivot and vertical extension adjustment
capabilities. · C3422WE:Tilt, swivel and vertical extension adjustment
capabilities. · Built-in speakers (2 x 5 W). · Removable pedestal stand and
Video Electronics Standards Association (VESATM)
100 mm mounting holes for flexible mounting solutions. · Ultra-thin bezel
minimizes the bezel gap during multi-monitor usage, enabling
easier set up with an elegant viewing experience. · Extensive digital
connectivity with DP helps future-proof your monitor. · Single USB Type-C to
supply power to compatible notebook while receiving video
signal.
8 | About your monitor
· USB-C and RJ45 ports enable a single-cable, network-connected experience. ·
Plug and play capability if supported by your computer. · On-Screen Display
(OSD) adjustments for ease of set-up and screen
optimization. · Power and OSD buttons lock. · Security lock slot. ·
C2422HE/C2722DE: 0.3 W in Standby Mode. · C3422WE: 0.5 W in Standby Mode. ·
Supports Picture by Picture (PBP) Select mode on C3422WE. · Allow user to
switch USB KVM function in PBP mode on C3422WE. · The monitor is designed with
Dell Power Button Sync (DPBS) feature to control
PC system power state from monitor power button. · Premium Panel Exchange for
peace of mind. · Optimize eye comfort with a flicker-free screen minimizes
hazard blue light
emission. · The monitor use Low Blue Light panel and compliance with TUV
Rheinland
(Hardware Solution) at factory reset/default setting model. · Decreases the
level of hazard blue light emitted from the screen to make viewing
more comfortable for your eyes. · The monitor adopts Flicker-Free technology,
which clears the eye visible flicker
, brings comfort viewing experience and preventing users suffer from eye
strain and fatigue. · Certified for Microsoft Teams®. · Certified for Windows
Hello® (Face Authentication) and supports Microsoft Cortana®. PC system that
supports DPBS is the Dell OptiPlex 7090/3090 Ultra platform. WARNING: The
possible long-term effects of blue light emission from the monitor may cause
damage to the eyes, including eye fatigue or digital eye strain.
About your monitor | 9
Identifying parts and controls
Front view
1 2 345 6
7
7
13 8 9 10 11 12
Label Description 1,6 Microphones
3
Webcam lens
2,4 IR LED
5
Webcam LED
indicator
7
Built-in speakers
Use
Monitor microphones (Mic). Mic is enabled when the webcam & Mic module is
popped up. Mic is disabled when the module is retracted.
Transmits your image in a video conference. Webcam is enabled when the webcam
& mic module is popped up. Webcam is disabled when the module is retracted.
Indicator of infrared (IR).
Indicator of Webcam. It will light up in white when webcam is in use.
To output the sound from audio input.
10 | About your monitor
8
Teams button & LED LED will light in static white when Microsoft Teams®
is signed in and running.
LED will blink when there is a Teams notification.
Short press on the button to bring up Teams and
open notification. Ensure that the Teams application
is signed in and is already running at the background.
NOTE: For the Teams button to work, ensure that
the Teams account is provisioned / setup as `Teams
Only’ mode. The tenant administrator should enable
the account to `Teams Only’ mode.
NOTE: Teams button will only work with Teams
application in `Teams Only’ mode. Setting might vary
in corporate environment, resulting in Teams button
not working on the monitor. Please check with your
system administrator.
9
Hookswitch & LED LED will blink in green when there is an incoming
Teams/Skype for Business (SfB) call.
LED will light up in static green during Teams/Skype
for Business (SfB) call.
Short press to answer / end call.
Long press to reject incoming call.
10
Volume down & LED Short press for 2 unit volume decrement.
Long press for continuous volume decrement.
11
Volume up & LED Short press for 2 unit volume increment.
Long press for continuous volume increment.
12
Microphone mute & Press to mute and unmute microphone.
LED
LED will light up in static red when mic is muted or
when the webcam & mic module is retracted.
LED will go dark when mic is enabled/unmuted.
13
Power LED indicator Solid white light indicates the monitor is turned
on and functioning normally. Breathing white light
indicates the monitor is in Standby Mode.
About your monitor | 11
Back view
1 2 3
4
7
5
6
Label Description
Use
1
VESA mounting holes (100 mm Wall mount monitor using VESA-
x 100 mm-behind attached compatible wall mount kit (100 mm x 100
VESA cover)
mm).
2 Regulatory label
Lists the regulatory approvals.
3 Stand release button
Releases stand from the monitor.
4 Power On/Off button
To turn the monitor on or off.
5 Joystick
Use it to control the OSD menu.
For more information, see Operating the Monitor.
6 Mac address, Barcode, serial Refer to this label if you need to contact Dell
number, and Service Tag label for technical support. The Service Tag is a
unique alphanumeric identifier that enables Dell service technicians to
identify the hardware components in your computer and access warranty
information.
7 Cable-management slot
Use to organize cables by inserting them through the slot.
12 | About your monitor
Bottom view
14
1 2 3 4 5 6 7 8 9 10
11 12 13
Label Description Use
1
Security lock slot Secures monitor with security cable lock (sold separately).
2
Power connector Connect the power cable.
3
HDMI port
Connect your computer with the HDMI cable.
4
DisplayPort in Connect your computer with the DisplayPort cable.
5
USB Type-C
Connect to your computer using the USB Type-C cable.
upstream/
The USB Type-C port offer the fastest transfer rate (USB
DisplayPort
3.2 Gen 1) and the alternate mode with DP 1.2 (C2422HE/
C3422WE) / DP 1.4 (C2722DE) support the following, and
PD 20 V/4.5 A, 15 V/3 A, 9 V/3 A, 5 V/3 A.
· C2422HE maximum resolution of 1920 x 1080 at 60 Hz
· C2722DE maximum resolution of 2560 x 1440 at 60 Hz
· C3422WE maximum resolution of 3440 x 1440 at 60 Hz
NOTE: USB Type-C is not supported on Windows versions
that are prior to Windows 10.
6
DP port (out) DP output for MST (multi-stream transport) capable
monitor. To enable MST, refer to instruction on section
“Connecting the Monitor for DP MST Function”.
NOTE: Remove the rubber plug when using DP out
connector.
NOTE: The port is only for C2422HE/C2722DE.
7
USB-B upstream Connect the USB cable that comes with your monitor to
port
the computer. Once this cable is connected, you can use
the USB downstream connectors on the monitor.
About your monitor | 13
8,9,11 super speed USB Connect your USB device. You can use these ports only
5 Gbps (USB 3.2 after you have connected the USB cable (Type-A to
Gen1) (3)
Type-B or Type-C to Type-C) from the computer to the
monitor.
Port with
battery icon supports Battery Charging
Rev. 1.2.
10 RJ-45 connector Connect Internet. You can surf Internet via RJ45 only after you have connected the USB cable(Type-A to Type-B or Type-C to Type-C) from the computer to the monitor.
12 Headphone jack Connect headphones or headset to playback audio through HDMI or DisplayPort or USB Type-C audio channels.
NOTE: The Headphone jack is a 3.5mm combo jack and supports Headset with Mic. To use the Mic on the Headset, you need to select Echo Cancelling Speakerphone audio path in the Sound setting interface.
NOTE: Excessive sound pressure from earphones or headphones can cause hearing damage or loss.Adjustment of the equalizer to maximum increases the earphones and headphones output voltage and therefore the sound pressure level.
13 USB Type-C
Port with
icon supports 5 V/3 A.
downstream port Connect your USB device. You can use these ports only
after you have connected the USB cable (Type-A to
Type-B or Type-C to Type-C) from the computer to the
monitor.
NOTE: This port is downstream only and unable to broadcast video or sound to the display or speakers.
14 Stand lock
Lock the stand to the monitor using a M3 x 6 mm screw (screw not included).
Monitor specifications
Model
C2422HE
C2722DE
Screen type
Active matrix – TFT LCD
Panel Type
In-plane switching Technology
Aspect ratio
16:9
16:9
Viewable image dimensions
Diagonal
60.47 cm (23.8 in.)
68.47 cm (27 in.)
C3422WE
21:9 86.71 cm (34.14 in.)
14 | About your monitor
Active Area Horizontal
Vertical
Area
Pixel pitch
Pixel per inch (PPI) Viewing angle Horizontal Vertical Brightness Contrast
ratio Curvature (Only for C3422WE) Display screen coating Backlight Response
Time (Gray to Gray)
Color depth Color gamut2
527.04 mm (20.75 in.)
296.46 mm (11.67 in.) 156246.28 mm2 (242.18 in.2)
0.2745(H) mm x 0.2745 (V) mm
92.56
596.74 mm (23.49 in.)
335.66 mm (13.22 in.) 200301.75 mm2 (310.47 in.2)
0.2331 (H) mm x 0.2331 (V) mm
108.79
799.8 mm (31.49 in.)
334.80 mm (13.18 in.) 267773.04 mm2 (415.05 in.2)
0.2325(H) mm x 0.2325(V) mm
109.68
178° (typical) 178° (typical) 250 cd/m² (typical) 1000 to 1 (typical) NA
350 cd/m² (typical) NA
300 cd/m² (typical) 3800R (typical)
Anti-glare treatment of the front polarizer (3H) hard coating
LED
5 ms (Fast mode) 8 ms (Normal mode)
16.78 million colors
99% sRGB
5 ms (Fast mode) 8 ms (Normal mode)
16.78 million colors
5 ms (Fast mode) 8 ms (Normal mode) 1.07 billion colors1
About your monitor | 15
Connectivity
· 1 x DP 1.2 (HDCP1.4)
· 1 x HDMI1 .4 (HDCP1.4)
· 1 x DP 1.4 (HDCP1.4)
· 1 x HDMI1 .4 (HDCP1.4)
· 1 x DP 1.2 (HDCP2.2)
· 1 x HDMI2.0 (HDCP2.2)
· 1 x USB Type-B (USB 3.2 Gen 1 upstream port) · 1 x USB Type-C (Alternate
mode with DisplayPort 1.4/1.2, USB
3.2 Gen 1 upstream port, Power Delivery PD up to 90 W) · 1 x USB Type-C
downstream (15 W), USB 3.2 Gen 1 (5 Gbps) · 1 x DP (Out) with MST (only for
C2422HE/C2722DE) · 2 x super speed USB 5 Gbps (USB 3.2 Gen 1) · 1 x super
speed USB 5 Gbps (USB 3.2 Gen 1) with BC 1.2
charging capability at 2 A (max) · 1 x 3.5 mm headphone jack · 1 x RJ45
Border width (edge of monitor to active area)
Top
5.80 mm
7.80 mm
8.03 mm
Left/Right
5.80 mm
7.80 mm
8.03 mm
Bottom
50.89 mm
51.97 mm
56.60 mm
Adjustability
Height adjustable 140 mm stand
120 mm
120 mm
Tilt
-5° to 21°
-5° to 21°
-5° to 21°
Swivel
-45° to 45°
-45° to 45°
-30° to 30°
Pivot
-90° to 90°
-90° to 90°
NA
Slant adjust
NA
NA
-4° to 4°
Cable
Yes
management
Dell Display Manager (DDM) Compatibility
Easy Arrange and other key features
Security
Security lock slot (cable lock sold separately)
1 Video output from DP/HDMI port at maximum resolution 3440×1440 at 60Hz is 1.07 billion colors. Video output from USB-C port at maximum resolution 3440×1440 at 60Hz is 16.78 million colors.
2 At panel native only, under Custom Mode preset.
16 | About your monitor
Resolution specifications
Model
C2422HE
C2722DE
Horizontal scan 30 kHz to 83 kHz 30 kHz to 90 kHz range
Vertical scan range
56 Hz to 76 Hz
Maximum preset 1920 x 1080 at 60 Hz 2560 x 1440 at 60 Hz resolution
Video display
480i, 480p, 576i, 560p, 720p, 1080i, 1080p
capabilities (HDMI
& DP & USB
Type-C alternate
mode)
C3422WE 30 kHz to 90 kHz
3440 x 1440 at 60 Hz
About your monitor | 17
Preset display modes C2422HE
Display mode
VESA, 720 x 400 VESA, 640 x 480 VESA, 640 x 480 VESA, 800 x 600 VESA, 800 x
600 VESA, 1024 x 768 VESA, 1024 x 768 VESA, 1152 x 864 VESA, 1280 x 1024
VESA,1280 x 1024 VESA, 1600 x 900 VESA, 1920 x 1080
Horizontal frequency (kHz) 31.47 31.47 37.50 37.88 46.88 48.36 60.02 67.50 64.0 80.0 55.99 67.50
Vertical frequency (Hz) 70 60 75 60 75 60 75 75 60 75 60 60
Pixel clock (MHz) 28.32 25.17 31.5 40 49.5 65 78.75 108 108 135 118.25 148.50
Sync polarity (Horizontal/ Vertical) -/+ -/-/+/+ +/+ -/+/+ +/+ +/+ +/+ +/+ +/+
18 | About your monitor
C2722DE Display Mode
Horizontal Frequency (kHz)
Vertical Frequency (Hz)
VESA, 720 x 400 31.50 VESA, 640 x 480 31.50 VESA, 640 x 480 37.50 VESA, 800 x 600 37.90 VESA, 800 x 600 46.90 VESA, 1024 x 768 48.40 VESA, 1024 x 768 60.0 VESA, 1152 x 864 67.50 VESA, 1280 x 1024 64.0 VESA, 1280 x 1024 80.0 VESA, 1600 x 1200 75.0 VESA, 1920 x 1080 67.50 VESA, 2048 x 1080 58.23 VESA, 2048 x 1080 66.58 VESA, 2560 x 1440 88.80
70.0 60.0 75.0 60.30 75.0 60.0 75.0 75.0 60.0 75.0 60.0 60.0 26.37 60.0 60.0
Pixel Clock (MHz)
28.30 25.20 31.50 40.0 49.50 65.0 78.80 108.0 108.0 135.0 162.0 148.5 23.99
147.16 241.50
Sync Polarity (Horizontal/ Vertical) -/+ -/-/+/+ +/+ -/+/+ +/+ +/+ +/+ +/+ +/+ +/+/+/-
About your monitor | 19
C3422WE Display Mode
Horizontal Frequency (kHz)
Vertical Frequency (Hz)
VESA, 720 x 400 31.50 VESA, 640 x 480 31.50 VESA, 640 x 480 37.50 VESA, 800 x 600 37.90 VESA, 800 x 600 46.90 VESA, 1024 x 768 48.40 VESA, 1024 x 768 60.0 VESA, 1152 x 864 67.50 VESA, 1280 x 1024 64.0 VESA, 1280 x 1024 80.0 VESA, 1600 x 1200 75.0 VESA, 1920 x 1080 67.50 VESA, 2048 x 1080 66.58 VESA, 2560 x 1440 88.80 CVT, 3440 x 1440 88.81
70.0 60.0 75.0 60.30 75.0 60.0 75.0 75.0 60.0 75.0 60.0 60.0 60.0 60.0 60.0
Pixel Clock (MHz)
28.30 25.20 31.50 40.0 49.50 65.0 78.80 108.0 108.0 135.0 162.0 148.50 147.16
241.50 319.75
Sync Polarity (Horizontal/ Vertical) -/+ -/-/+/+ +/+ -/+/+ +/+ +/+ +/+ +/+ +/+ +/+/+/-
20 | About your monitor
DP Multi-Stream Transport (MST) Modes C2422HE
MST Source Monitor 1920 x 1080 at 60 Hz
Maximum number of external monitors that can be supported 1920 x 1080 at 60 Hz
3
NOTE: Maximum external monitor resolution supported is 1920 x 1080 at 60 Hz only. C2722DE
MST Source Monitor 2560 x 1440 at 60 Hz
Maximum number of external monitors that can be supported 2560 x 1440 at 60 Hz
1
NOTE: Maximum external monitor resolution supported is 2560 x 1440 at 60 Hz only.
NOTE: DP output for MST is supported on C2422HE and C2722DE only.
USB-C Multi-Stream Transport (MST) Modes C2422HE
MST Source Monitor
Maximum number of external monitors that can be supported
1920 x 1080 at 60 Hz
1920 x 1080 at 60 Hz 1
C2722DE
OSD Display Info: Link rate(current)
HBR3(DP 1.4) HBR2(DP 1.2)
Maximum number of external monitors that can be supported
2560 x 1440 at 60 Hz 1 0
About your monitor | 21
Unified Communications (UC) Platform Compatibility List
The table below highlights the call functions that work on the Dell Video Conferencing Monitor C2422HE, C2722DE and C3422WE when using the following UC platforms#.
Call Functions
Bring up Microsoft Teams
Answer call End call
Reject call
Adjust
Adjust
Speaker
Speaker
volume down volume up
Mute/
Unmute Microphone
Button
Teams
Hookswitch
Hookswitch
Hookswitch
Volume Down
Volume Up Mute
Microsoft
Teams
Skype for ×
Business
Zoom
×
×
×
×
×
×
×
×
Hangouts
BlueJeans ×
×
×
×
Cisco Webex ×
×
×
×
FaceTime ×
×
×
×
Slack
×
×
×
×
GoToMeeting ×
×
×
×
Call function on the Dell C2422HE/C2722DE/C3422WE works with the UC platform
× Call function on the Dell C2422HE/C2722DE/C3422WE does not work with the UC
platform
- Mute function on the Dell C2422HE/C2722DE/C3422WE works by pressing the Mute button, but the Mute Icon on the UC platform is not sync (Icon shows unmute).
On Windows 10 64 Bit OS
22 | About your monitor
Electrical specifications
Model
C2422HE
C2722DE
C3422WE
Video input signals
· Digital video signal for each differential line Per differential line at 100 ohm impedance
Input voltage/ frequency/ current
Inrush current
· DP/HDMI/USB Type-C signal input support
100-240 VAC / 50 or 100-240 VAC / 50 or
60 Hz ± 3 Hz / 2.3 A 60 Hz ± 3 Hz / 2.5 A
(maximum)
(maximum)
120 V: 42 A (Max.)
100-240 VAC / 50 or 60 Hz ± 3 Hz / 2.8 A (maximum)
Power Consumption
240 V: 80 A (Max.) 0.2 W (Off Mode)1
0.2 W (Standby Mode)1
0.2 W (Off Mode)1
0.3 W (Standby Mode)1
0.3 W (Off Mode)1
0.4 W (Standby Mode)1
18 W (On Mode)1
26.50 W (On Mode)1 32.50 W (On Mode)1
195 W (Max)2
210 W (Max)2
220 W (Max)2
13.81 W (Pon)3 48.60 kWh (TEC)3
19.45 W (Pon)3 64.64 kWh (TEC)3
27.70 W (Pon)3 89.08 kWh (TEC)3
1 As defined in EU 2019/2021 and EU 2019/2013.
2 Max brightness and contrast setting with maximum power loading on all USB
ports.
3 Pon: Power consumption of On Mode as defined in Energy Star 8.0 version.
TEC: Total energy consumption in kWh as defined in Energy star 8.0 version.
This document is informational only and reflects laboratory performance. Your product may perform differently, depending on the software, components and peripherals you ordered and shall have no obligation to update such information. Accordingly, the customer should not rely upon this information in making decisions about electrical tolerances or otherwise. No warranty as to accuracy or completeness is expressed or implied.
NOTE: This monitor is ENERGY STAR certified.
This product qualifies for ENERGY STAR in the factory default settings which
can be restored by “Factory Reset” function in the OSD menu. Changing the
factory default settings or enabling other features may increase power
consumption that could exceed
the ENERGY STAR specified limit.
About your monitor | 23
Webcam microphone specifications
Lens
Field of view (horizontal) 75.4° for 2560 x 1920
Focus mode
Fixed Focus
Focus area
35 cm~1.5 m
Focusing distance (normal 70 cm mode)
Image Sensor
Active array size
5 mega-pixel
Video Specification
Video frame rate
1920 x 1080 (Full HD)- up to 30 frames per second
Audio Specification
Microphone type
Digital microphone x 2
Interface
USB 2.0 High Speed
Power Supply
3.3 volts +/- 5% for USB and Microphone 5 volts +/- 5% for IR camera
Speaker Specifications
Model Speaker rated power Frequency Response Impedance
C2422HE 2 x 5 W 200 Hz – 16 kHz 8 ohm
C2722DE
C3422WE
Physical characteristics
Connector type Signal cable type
· DP connector (DP in and DP out on C2422HE/C2722DE. Only DP in on C3422WE)
· HDMI connector · USB Type-C connector · Audio jack · RJ45 connector · USB
upstream connector x 2 · USB 3.2 Gen 1 downstream connector x 3 · USB Type-C
downstream connector
DP to DP 1.8 M cable USB 3.2 Gen1 Type-A to B 1.8 M cable USB 3.2 Gen1 Type-C
to C 1.8 M cable (C2422HE/C3422WE) USB 3.2 Gen 2 C to C 1.0 M cable (C2722DE)
24 | About your monitor
Model
C2422HE
C2422HE WOST*
Dimensions
Height (extended) 544.08 mm (21.40 in.)
NA
Height (compressed) 404.08 mm (15.90 in.)
NA
Width
538.64 mm (21.21 in.)
NA
Depth
185.00 mm (7.30 in.)
NA
Dimensions (without stand)
Height
383.15 mm (13.90 in.)
Width
538.64 mm (21.21 in.)
Depth
51.24 mm (2 in.)
Stand dimensions
Height (extended) 428.30 mm (16.90 in.)
NA
Height (compressed) 381.50 mm (15.02 in.)
NA
Width
267.68 mm (10.50 in.)
NA
Depth
185 mm (7.30 in.)
NA
Weight
Weight with packaging
8.82 kg (19.50 lb)
7.03 kg (15.50 lb)
Weight with stand 6.53 kg (14.40 lb)
NA
assembly and cables
Weight without stand NA
assembly and with
cables
Weight without
4.33 kg (9.60 lb)
stand assembly (For
wall mount or VESA
mount considerations
– no cables)
Weight of stand
1.79 kg (3.90 lb)
assembly
4.74 kg (10.45 lb) 4.33 kg (9.60 lb)
NA
- C2422HE WOST: C2422HE without stand assembly.
About your monitor | 25
Model
C2722DE
Dimensions
Height (extended) 565.57 mm (22.30 in.)
Height (compressed) 445.57 mm (17.54 in.)
Width
612.34 mm (24.11 in.)
Depth
230.00 mm (9.10 in.)
Dimensions (without stand)
Height
425.43 mm (16.75 in.)
Width
612.34 mm (24.11 in.)
Depth
53.93 mm (2.10 in.)
Stand dimensions
Height (extended) 428.30 mm (16.90 in.)
Height (compressed) 381.50 mm (15.02 in.)
Width
300.01 mm (11.81 in.)
Depth
230 mm (9.10 in.)
Weight
Weight with
12.62 kg (27.80 lb)
packaging
Weight with stand 9.21 kg (20.30 lb)
assembly and cables
Weight without stand NA
assembly and with
cables
Weight without
5.74 kg (12.70 lb)
stand assembly (For
wall mount or VESA
mount considerations
– no cables)
Weight of stand
3.06 kg (6.70 lb)
assembly
C3422WE
576.20 mm (22.68 in.) 456.20 mm ( 17.96 in.) 815.85 mm (32.10 in.) 234.95 mm
(9.30 in.)
434.43 mm (17.08 in.) 815.85 mm ( 32.10 in.) 81.08 mm (3.20 in.)
433.32 mm (17.10 in.) 386.50 mm (15.20 in.) 306.91 mm (12.10 in.) 234.95 mm
(9.25 in.)
16 kg (35.20 lb) 11.35 kg (25 lb) NA
7.30 kg (16.06 lb)
3.54 kg ( 7.79 lb)
26 | About your monitor
Environmental characteristics
Compliant Standards · ENERGY STAR certified Monitor.
· EPEAT registered where applicable. EPEAT registration varies by country. See https://www.epeat.net for registration status by country.
· TCO Certified & TCO Certified Edge.
· RoHS Compliant.
· BFR/PVC Free monitor (excluding external cables).
· Meets NFPA 99 leakage current requirements.
· Arsenic-Free glass and Mercury-Free for the panel only.
Temperature Operating Non-operating
0°C to 40°C (32°F to 104°F) 20°C to 60°C (4°F to 140°F)
Humidity Operating Non-operating
10% to 80% (non-condensing) 5% to 90% (non-condensing)
Altitude Operating Non-operating
5,000 m (16,404 ft) (maximum) 12,192 m (40,000 ft) (maximum)
Thermal dissipation
C2422HE
665.37 BTU/hour (maximum)
61.42 BTU/hour (on mode)
C2722DE
716.55 BTU/hour (maximum)
90.42 BTU/hour (on mode)
C3422WE
750.67 BTU/hour (maximum)
108.44 BTU/hour (on mode)
About your monitor | 27
Pin assignments DP port (in)
Pin number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
20-pin side of the connected signal cable ML3(n) GND ML3(p) ML2(n) GND ML2(p) ML1(n) GND ML1(p) ML0(n) GND ML0(p) CONFIG1 CONFIG2 AUX CH (p) GND AUX CH (n) Hot Plug Detect Return DP_PWR
28 | About your monitor
DP port (out)
Pin number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
20-pin side of the connected signal cable ML0(p) GND ML0(n) ML1(p) GND ML1(n) ML2(p) GND ML2(n) ML3(p) GND ML3(n) CONFIG1 CONFIG2 AUX CH(p) GND AUX CH(n) Hot Plug Detect Return DP_PWR
About your monitor | 29
HDMI port
Pin number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
19-pin side of the connected signal cable TMDS DATA 2+ TMDS DATA 2 SHIELD TMDS DATA 2TMDS DATA 1+ TMDS DATA 1 SHIELD TMDS DATA 1TMDS DATA 0+ TMDS DATA 0 SHIELD TMDS DATA 0TMDS CLOCK+ TMDS CLOCK SHIELD TMDS CLOCKCEC Reserved (N.C. on device) DDC CLOCK (SCL) DDC DATA (SDA) DDC/CEC Ground +5 V POWER HOT PLUG DETECT
30 | About your monitor
USB Type-C port
Pin
Signal
A1
GND
A2
SSTXp1
A3
SSTXn1
A4
VBUS
A5
CC1
A6
Dp1
A7
Dn1
A8
SBU1
A9
VBUS
A10
SSRXn2
A11
SSRXp2
A12
GND
Pin
Signal
B12
GND
B11
SSRXp1
B10
SSRXn1
B9
VBUS
B8
SBU2
B7
Dn1
B6
Dp1
B5
CC2
B4
VBUS
B3
SSTXn2
B2
SSTXp2
B1
GND
About your monitor | 31
Universal Serial Bus (USB)
This section gives you information about the USB ports available on your monitor.
NOTE: Up to 2 A on USB downstream port (port with
battery icon) with
BC 1.2 compliance devices; up to 0.9 A on the other 2 USB downstream ports;
Up to 3 A on USB Type-C downstream port (port with icon) with 5 V/3 A
compliance devices.
Your computer has the following USB ports:
· 2 upstream – at rear.
· 4 downstream – 2 at bottom, 2 at rear.
Power Charging Port – the ports with
battery icon supports fast current
charging capability if the device is BC 1.2 compatible.The USB Type-C downstream
port with icon supports fast current charging capability if the device is 5V/3A
compatible.
NOTE: The monitor’s USB ports work only when the monitor is on or on in
Standby Mode. On in Standby Mode, if the USB cable (Type-C to Type-C) is
plugged in, the USB ports can work normally. Otherwise, follow the OSD setting
of Other USB Charging, if the setting is “On in Standby Mode” then USB work
normally, otherwise USB is disabled. If you turn off the monitor and then turn it on,
the attached peripherals may take a few seconds to resume normal functionality.
Transfer speed Data rate
Maximum power consumption (each port)
super speed
5 Gbps
4.5 W
hi speed
480 Mbps
2.5 W
full speed
12 Mbps
2.5 W
32 | About your monitor
USB upstream port
USB downstream port
Pin number 1 2 3 4 5 6 7 8 9 Shell
Signal name VBUS DD+ GND StdB_SSTXStdB_SSTX+ GND_DRAIN StdB_SSRXStdB_SSRX+ Shield
RJ45 port (connector side)
GREEN
PHY SIDE
Pin number 1 2 3 4 5 6 7 8 9 Shell
Signal name VBUS DD+ GND StdA_SSRXStdA_SSRX+ GND_DRAIN StdA_SSTXStdA_SSTX+ Shield
RJ45
CABLE SIDE
Pin Signal Pin Signal 1 TD1 + 8 TD3 –
2 TD1 – 9 TD4 +
3 TD2 + 10 TD4 –
GREEN
ORANGE
SHIELD
2kV, 1000pF
GROUND
4 TD2 – 11 GREEN_ORANGE
5 CT
12 GREEN_ORANGE
6 CT 13 GREEN
7 TD3 + 14 GREEN
About your monitor | 33
Driver installation Install the Realtek USB GBE Ethernet Controller Driver
available for your system. This is available for download at
https://www.dell.com/support under the “Driver and download” section. Network
(RJ45) data rate via USB-C max speed is 1000 Mbps.
NOTE: This LAN port is 1000Base-T IEEE 802.3az compliant, supporting Mac
Address (Printed on model label) Pass-thru (MAPT), Wake-on-LAN (WOL) from
standby mode (S3 only) and UEFI PXE Boot function[UEFI PXE Boot is not
supported on Dell Desktop PC’s (except for OptiPlex 7090/3090 Ultra Desktop)],
these 3 features depend on BIOS settings and version of the OS. Functionality
may vary with Non Dell PC’s. UEFI stands for Unified Extensible Firmware
Interface.
34 | About your monitor
RJ45 Connector LED status:
Right LED Left LED
LED
Color
Description
Right LED
Amber or Green Speed indicator: · Amber On – 1000 Mbps · Green On – 100 Mbps · Off – 10 Mbps
Left LED Green
Link / Activity indicator: · Blinking – Activity on the port. · Green On – Link is being established. · Off – Link is not established.
NOTE: RJ45 cable is non in-box standard accessory.
About your monitor | 35
Plug-and-Play
You can install the monitor in any Plug-and-Play-compatible system. The
monitor automatically provides the computer system with its extended display
identification data (EDID) using display data channel (DDC) protocols so the
computer can configure itself and optimize the monitor settings. Most monitor
installations are automatic; you can select different settings if desired. For
more information about changing the monitor settings, see Operating the
Monitor.
LCD monitor quality and pixel policy
During the LCD monitor manufacturing process, it is not uncommon for one or
more pixels to become fixed in an unchanging state which are hard to see and
do not affect the display quality or usability. For more information on LCD
Monitor Pixel Policy, see Dell support site
at:https://www.dell.com/pixelguidelines.
36 | About your monitor
Ergonomics
CAUTION: Improper or prolonged usage of keyboard may result in injury.
CAUTION: Viewing the monitor screen for extended periods of time may result in
eye strain. For comfort and efficiency, observe the following guidelines when
setting up and using your computer workstation: · Position your computer so
that the monitor and keyboard are directly in front of
you as you work. Special shelves are commercially available to help you
correctly position your keyboard. · To reduce the risk of eye strain and
neck/arm/back/shoulder pain from using the monitor for long periods of time,
we suggest you to: 1. Set the distance of the screen between 20 to 28 in. (50
– 70 cm) from your
eyes. 2. Blink frequently to moisten your eyes or wet your eyes with water
after
prolonged usage of the monitor. 3. Take regular and frequent breaks for 20
minutes every two hours. 4. Look away from your monitor and gaze at a distant
object at 20 feet away for
at least 20 seconds during the breaks. 5. Perform stretches to relieve tension
in the neck, arm, back, and shoulders
during the breaks. · Make sure that the monitor screen is at eye level or
slightly lower when you are
sitting in front of the monitor. · Adjust the tilt of the monitor, its
contrast, and brightness settings. · Adjust the ambient lighting around you
(such as overhead lights, desk lamps, and
the curtains or blinds on nearby windows) to minimize reflections and glare on
the monitor screen. · Use a chair that provides good lower-back support. ·
Keep your forearms horizontal with your wrists in a neutral, comfortable
position while using the keyboard or mouse. · Always leave space to rest your
hands while using the keyboard or mouse. · Let your upper arms rest naturally
on both sides. · Ensure that your feet are resting flat on the floor. · When
sitting, make sure that the weight of your legs is on your feet and not on the
front portion of your seat. Adjust your chair’s height or use a footrest if
necessary to maintain a proper posture. · Vary your work activities. Try to
organize your work so that you do not have to sit and work for extended
periods of time. Try to stand or get up and walk around at regular intervals.
About your monitor | 37
· Keep the area under your desk clear of obstructions and cables or power
cords that may interfere with comfortable seating or present a potential trip
hazard.
monitor screen at or below eye level
wrists relaxed and flat
monitor and keyboard positioned directly in front of the user
feet flat on the floor
38 | About your monitor
Handling and moving your display
To ensure the monitor is handled safely when lifting or moving it, follow the
guidelines mentioned below:
· Before moving or lifting the monitor, turn off your computer and the
monitor. · Disconnect all cables from the monitor. · Place the monitor in the
original box with the original packing materials. · Hold the bottom edge and
the side of the monitor firmly without applying
excessive pressure when lifting or moving the monitor.
· When lifting or moving the monitor, ensure the screen is facing away from
you and do not press on the display area to avoid any scratches or damage.
· When transporting the monitor, avoid any sudden shock or vibration to it.
About your monitor | 39
· When lifting or moving the monitor, do not turn the monitor upside down
while holding the stand base or stand riser. This may result in accidental
damage to the monitor or cause personal injury.
Maintenance guidelines
Cleaning your monitor
WARNING: Before cleaning the monitor, unplug the monitor power cable from the
electrical outlet. CAUTION: Read and follow the Safety Instructions before
cleaning the monitor. For best practices, follow these instructions in the
list below while unpacking, cleaning, or handling your monitor: · To clean
your anti-static screen, lightly dampen a soft, clean cloth with water. If
possible, use a special screen-cleaning tissue or solution suitable for the
antistatic coating. Do not use benzene, thinner, ammonia, abrasive cleaners,
or compressed air. · Use a lightly-dampened, soft cloth to clean the monitor.
Avoid using detergent of any kind as some detergents leave a milky film on the
monitor. · If you notice white powder when you unpack your monitor, wipe it
off with a cloth. · Handle your monitor with care as a darker-colored monitor
may get scratched and show white scuff marks more than a lighter – colored
monitor. · To help maintain the best image quality on your monitor, use a
dynamically changing screen saver and turn off your monitor when not in use.
40 | About your monitor
Setting up the monitor
Connecting the stand
NOTE: The stand riser and stand base are detached when the monitor is shipped
from the factory. NOTE: The following instructions are applicable only for the
stand that was shipped with your monitor. If you are connecting a stand that
you purchased from any other source, follow the set up instructions that were
included with the stand.
To attach the monitor stand: 1. Align and place the stand riser on the stand
base. 2. Open the screw handle at the bottom of the stand base and turn it
clockwise to
secure the stand assembly. 3. Close the screw handle.
1
2
3
Setting up the monitor | 41
4. Open the protective cover on the monitor to access the VESA slot on the
monitor.
5. Slide the tabs on the stand riser into the slots on the display back cover
and lower the stand assembly to snap it into place.
42 | Setting up the monitor
6. Hold the stand riser and lift the monitor carefully, then place it on a
flat surface.
NOTE: Hold the stand riser firmly when lifting the monitor to avoid any
accidental damage. 7. Lift the protective cover from the monitor.
Setting up the monitor | 43
Using the tilt, swivel, and vertical extension
NOTE: The following instructions are applicable only for the stand that was
shipped with your monitor. If you are connecting a stand that you purchased
from any other source, follow the set up instructions that were included with
the stand.
Tilt, swivel and vertical extension
With the stand attached to the monitor, you can tilt the monitor for the most
comfortable viewing angle.
C2422HE
5°
140 mm
45°
45°
21°
C2722DE
45°
5°
120 mm 45°
21°
44 | Setting up the monitor
C3422WE
5°
120 mm
30°
30°
21°
NOTE: The stand is detached when the monitor is shipped from the factory.
Rotating the Display (C2422HE/C2722DE only)
Before you rotate the display, extend the display vertically until the top of
the stand riser and then tilt the display backwards until the maximum to avoid
hitting the bottom edge of the display.
1
90°
90°
2
NOTE: To toggle the display setting on your Dell computer between landscape
and portrait when rotating the display, download and install the latest
graphics driver. To download, go to https://www.dell.com/support/drivers and
search for the appropriate driver. NOTE: When the display is in portrait mode,
you may experience performance degradation when using graphic-intensive
applications such as 3D gaming.
Setting up the monitor | 45
Configuring the display settings on your computer after rotation
(C2422HE/C2722DE only)
After you have rotated the display, complete the procedure given below to
configure the display settings on your computer.
NOTE: If you are using the monitor with a non-Dell computer, go to the
graphics card manufacturer’s website or your computer manufacturer website for
information on how to rotate the contents of your display. To configure the
Display Settings: 1. Right-click on the Desktop and click Properties. 2.
Select the Settings tab and click Advanced. 3. If you have an AMD graphics
card, select the Rotation tab and set the
preferred rotation. 4. If you have an nVidia graphics card, click the nVidia
tab, in the left-hand
column select NVRotate, and then select the preferred rotation. 5. If you have
an Intel® graphics card, select the Intel graphics tab, click Graphic
Properties, select the Rotation tab, and then set the preferred rotation.
NOTE: If you do not see the rotation option or it is not working correctly, go
to https://www.dell.com/support and download the latest driver for your
graphics card.
46 | Setting up the monitor
Operating the monitor webcam
When you want to use the monitor built-in webcam and microphone, press down on
the webcam module and then release. The webcam module will pop up.
Setting up the monitor | 47
Connecting your monitor
WARNING: Before you begin any of the procedures in this section, follow the
Safety Instructions. To connect your monitor to the computer: 1. Turn off your
computer. 2. Connect the DisplayPort or USB cable, and the USB Type-C cable
from your
monitor to the computer. 3. Turn on your monitor. 4. Select the correct input
source from the OSD Menu on your monitor and then
turn on your computer. NOTE: C2422HE/C3422WE default setting is DisplayPort
1.2, C2722DE default setting is DisplayPort 1.4. A DisplayPort 1.1 Graphic
card may not display normally. Please refer to “product specific problems No
image when using DP connection to the PC” to change default setting.
Connecting the HDMI cable (Optional)
HDMI
HDMI
48 | Setting up the monitor
Connecting the DP cable
DP
DP
Connecting the monitor for DP Multi-Stream Transport (MST) function (C2422HE/C2722DE only)
DP
DP
DP out
DP
NOTE: Supports the DP MST feature. To make use of this feature, your PC
Graphics Card must be certified to at least DP1.2 with MST option. NOTE:
Remove the rubber plug when using DP out connector.
NOTE: It is not recommended to connect multiple C2422HE / C2722DE / C3422WE in
DP MST function.
Setting up the monitor | 49
Connecting the USB cable
USBUSB
USB
Connecting the USB Type-C cable
USB Type-C
USB Type-C
The USB Type-C port on your monitor: · Can be used as USB Type-C, DisplayPort
1.4 (C2722DE) or DisplayPort 1.2 (C2422HE/C3422WE), alternatively. · Supports
USB Power Delivery (PD), with profiles up to 90 W.
NOTE: Regardless of the power requirement/actual power consumption of your
laptop, or the remaining power runtime in your battery, the Dell
C2422HE/C2722DE/C3422WE monitor is designed to supply power delivery of up to
90 W to your laptop.
Rated power (on laptops that have USB Maximum charging power Type-C with Power Delivery)
45 W
45 W
65 W
65 W
90 W 130 W
90 W Not supported
50 | Setting up the monitor
Connecting the monitor for USB-C Multi-Stream Transport (MST) function (C2422HE/C2722DE only)
DP in
USB Type-C DP out
USB Type-C
NOTE: The maximum number of supported C2422HE/C2722DE via MST is subjected to the bandwith of the USB-C source. Please refer to “product specific problems No image when using USB Type-C MST”.
NOTE: Remove the rubber plug when using DP out connector.
NOTE: It is not recommended to connect multiple C2422HE / C2722DE / C3422WE in
DP MST function.
Connecting the monitor for RJ45 Cable (Optional)
USB Type-C
RJ45
USB Type-C
Setting up the monitor | 51
Dell Power Button Sync (DPBS)
Your monitor is designed with Dell Power Button Sync (DPBS) feature to allow
you to control PC system power state from the monitor power button. This
feature is only supported with Dell platform which has built-in DPBS function,
and is only supported over USB-C interface.
USB Type-C
USB Type-C
To make sure the DPBS function works for the first time, perform the following
steps on the DPBS supported platform in the Control Panel first.
NOTE: DPBS only supports the USB-C upstream port. 1. Go to Control Panel.
2. Select Hardware and Sound, followed by Power Options.
52 | Setting up the monitor
3. Go to System Settings
4. In the drop-down menu of When I press the power button, there are a few
options for selection namely Do nothing/Sleep/Hibernate/Shut down, and you can
select Sleep/Hibernate/Shut down.
NOTE: Do not select Do nothing, otherwise monitor power button cannot sync
with PC system power state.
Setting up the monitor | 53
Connecting the monitor for DPBS for the first time
USB-C
Initial monitor power state(OFF)
Initial system power state(OFF)
USB-C
For the first time setting up the DPBS function: 1. Make sure both the PC and
monitor is OFF. 2. Press the monitor power button to turn ON the monitor. 3.
Connect the USB-C cable from the PC to the monitor. 4. Both the monitor and PC
will turn ON normally except Dell Optiplex 7090/3090
Ultra platform. 5. When you connect the Dell Optiplex 7090/3090 Ultra
platform, you may see both
the monitor and PC will turn ON momentarily. Wait for a while (approximately 6
seconds) and both the PC and monitor will turn OFF. When you press either the
monitor power button or PC power button, both the PC and monitor will turn ON.
The PC system power state is in sync with the monitor power button.
NOTE: You can power the Dell PC Ultra platform using its DC adaptor jack.
Alternatively, you can power the Dell PC Ultra platform using the monitor’s
USB-C cable via Power Delivery (PD); please set USB-C Charging 90 W to On in
Off Mode. * Ensure to check the Dell PC for DPBS supportability.
54 | Setting up the monitor
Using DPBS function
Waking on the USB-C cable · When you connect the USB-C cable, the Monitor/PC state is as follows:
1
USB-C
Initial monitor power state (ON or Standby)
2
New Power state of monitor (ON)
Initial system power state (ON)
USB-C
New Power state of system (ON)
Connect USB-C cable
USB-C
USB-C
1
Initial monitor power state (ON or Standby)
2
New Power state of monitor (ON)*
Initial system power state (OFF)
USB-C
New Power state of system (ON)*
Connect USB-C cable
USB-C
- Not all Dell PC systems support to wake up the platform via the monitor.
Pressing the power button
· When you press the monitor power button or PC power button, the Monitor/PC
state is as follows:
1
USB-C
Initial monitor power state (ON)
2
Initial system power state (ON)
USB-C
New Power state of system (OFF)
Press PC/Monitor power button
USB-C
USB-C
USB-C
1
Initial monitor power state (OFF)
2
New Power state of monitor (ON)
Initial system power state (OFF)
USB-C
New Power state of system (ON)
Press PC/Monitor power button
USB-C
USB-C
Setting up the monitor | 55
· When the monitor and the PC power state are both ON, press and hold the monitor power button for 4 seconds, the screen prompt will ask if you would like to shut down the PC.
Press and hold 4s
USB Type-C
PC will shut down
Slide to shut down your PC
· When the monitor and the PC power state are both ON, press and hold the monitor power button for 10 seconds, the PC will shut down.
Press and hold 10s
USB Type-C
PC will shut down
56 | Setting up the monitor
Connecting the monitor for USB-C Multi-Stream Transport (MST) function (C2422HE/C2722DE only) in DPBS mode
A PC is connected to two monitors in an initially OFF power state, and the PC system power state is in sync with Monitor 1 power button. When you press the Monitor 1 or PC power button, both the Monitor 1 and PC turns ON. Meanwhile the Monitor 2 will remain OFF. You need to manually press the power button on Monitor 2 to turn it ON.
DP in
USB Type-C DP out
USB Type-C System power state(ON)
Monitor 2
Monitor 1
NOTE: Both monitors need to be Dell monitors which support DPBS function.
NOTE: It is not recommended to connect multiple C2422HE / C2722DE / C3422WE in USB-C MST function in DPBS mode.
Similarly, a PC is connected to two monitors in an initially ON power state, and the PC system power state is in sync with Monitor 1 power button. When you press the Monitor 1 or PC power button, both the Monitor 1 and PC turns OFF. Meanwhile the Monitor 2 will be in Standby mode. You need to manually press the power button on
Monitor 2 to turn it OFF.
DP in
USB Type-C DP out
Going into Standby mode…
Monitor 2
Monitor 1
USB Type-C System power state(OFF)
Setting up the monitor | 57
Connecting the monitor for USB-C in DPBS mode
The Dell OptiPlex 7090 Ultra platform has two USB-C ports, so both Monitor 1
and Monitor 2 power state will sync with the PC. While the PC and two monitors
are in an initially ON power state, by pressing the power button on Monitor 1
or Monitor 2 will turn OFF the PC, Monitor 1, and Monitor 2.
USB Type-C
System power state(ON)
USB Type-C port1
USB Type-C port2
Monitor 1
USB Type-C
Monitor 2
Pressing power button on Monitor 1 or 2
System power state(OFF)
USB Type-C port1
USB Type-C port2
Monitor 1 Monitor 2
USB Type-C USB Type-C
58 | Setting up the monitor
Make sure to set USB-C Charging to On in Off Mode. While the PC and two
monitors are in an initially OFF power state, by pressing the power button on
Monitor 1 or Monitor 2 will turn ON the PC, Monitor 1, and Monitor 2.
USB Type-C
System power state(OFF)
USB Type-C port1
USB Type-C port2
Monitor 1
USB Type-C
Monitor 2
Pressing power button on Monitor 1 or 2
System power state(ON)
USB Type-C port1
USB Type-C port2
Monitor 1 Monitor 2
USB Type-C USB Type-C
Setting up the monitor | 59
Organizing your cables
After attaching all necessary cables to your monitor and computer, (see
Connecting Your Monitor for cable attachment) organize all cables as shown
above. If your cable Is not able to reach your PC, you may connect directly to
the PC without routing through the slot on the monitor stand.
Securing your monitor using Kensington lock (optional)
The security lock slot is located at the bottom of the monitor. (See Security
lock slot) For more information on using the Kensington lock (purchased
separately), see the documentation that is shipped with the lock. Secure your
monitor to a table using the Kensington security lock.
NOTE: The image is for the purpose of illustration only. Appearance of the
lock may vary.
60 | Setting up the monitor
Removing the monitor stand
CAUTION: To prevent scratches on the LCD screen when removing the stand,
ensure that the monitor is placed on a soft, clean surface. NOTE: The
following instructions are applicable only for the stand that was shipped with
your monitor. If you are connecting a stand that you purchased from any other
source, follow the set up instructions that were included with the stand. To
remove the stand: 1. Place the monitor on a soft cloth or cushion. 2. Press
and hold the stand-release button. 3. Lift the stand up and away from the
monitor.
3 2
Setting up the monitor | 61
Wall mounting (Optional)
NOTE: Use M4 x 11 mm screws to connect the monitor to the wallmounting kit.
Refer to the instructions that come with the VESA-compatible wall mounting
kit. 1. Place the monitor on a soft cloth or cushion on a stable flat table.
2. Remove the stand. 3. Use a Phillips crosshead screwdriver to remove the
four screws securing the plastic cover. 4. Attach the mounting bracket from
the wall mounting kit to the monitor. 5. Mount the monitor on the wall as
instructed in the documentation that shipped with the wall-mounting kit. NOTE:
For use only with UL or CSA or GS-listed wall mount bracket with minimum
weight/load bearing capacity of 17.32 kg (38.40 lb) (C2422HE) / 22.96 kg
(50.80 lb) (C2722DE) / 29.20 kg (64.24 lb) (C3422WE).
62 | Setting up the monitor
Operating the monitor
Power on the monitor
Press the button to turn on the monitor.
Using the joystick control
Use the joystick control on the rear of the monitor to make OSD adjustments.
1. Press the joystick button to launch the OSD main menu. 2. Move the
joystick up/down/left/right to toggle between options. 3. Press the joystick
button again to confirm the settings and exit. Joystick Description
· When the OSD menu is on, press the button to confirm the selection or save
the settings.
· When the OSD menu is off, press the button to launch the OSD main menu. See
Accessing the menu system.
· For 2-way (right and left) directional navigation. · Move right to enter the
submenu. · Move left to exit from the submenu. · Increases (right) or
decreases (left) the parameters of selected menu
item. · For 2-way (up and down) directional navigation. · Toggles between the
menu items. · Increases (up) or decreases (down) the parameters of selected
menu
item.
Operating the monitor | 63
Using the rear-panel controls
Use the joystick control on the rear of the monitor to adjust the display
settings. As you use the button to adjust the settings, an OSD shows the
numeric values of each feature as they change.
Display Info
The following table describes the rear-panel buttons:
Options 1
Description
Use this Menu button to launch the on-screen display (OSD) and select the OSD
menu.
Shortcut key: Menu See Accessing the menu system
2
Use this button to choose from a list of Display
Info.
Shortcut key:
Display Info
3
Use this button to choose from a list of Input
Source.
Shortcut key: Input Source
4
Use this button to choose from a list of preset
color modes.
Shortcut key: Preset Modes
5
To directly access the Brightness/Contrast
adjustment sliders.
Shortcut key: Brightness/Contrast
6
Use this button to choose from a list of Aspect
Ratio.
Shortcut key: Aspect Ratio
7
Use this button to go back to the main menu or
exit the OSD main menu.
Exit
64 | Operating the monitor
Using the OSD lock function
You can lock the front-panel control buttons to prevent access to the OSD menu
and/ or power button. Use the Lock menu to lock the button(s).
1. Select one of the following options.
24/27/34 Monitor
Brightness/Contrast Input Source Color Display PIP/PBP USB Audio Menu
Personalize Others
Language Rotation Transparency Timer Lock Reset Menu
Menu Buttons Power Button Menu + Power Buttons Disable
Exit
2. The following message appears.
Are you sure you want to lock the Menu Buttons? To unlock the Button, refer to
the User’s Guide.
Yes No
3. Select Yes to lock buttons. Once locked, pressing any control button will display the lock icon .
Operating the monitor | 65
Use the Joystick to lock the button(s). Press the left directional navigation
of Joystick for four seconds, a menu appears on the screen.
Select Option:
Select one of the following options:
Options 1
Description Select this option to lock OSD menu function.
Menu Button lock
2
Use this option to lock power button. This will
prevent the user to turn off the monitor using the
Power Button lock
power button.
3
Use this option to lock OSD menu and power
button to turn off the monitor.
Menu and Power Button lock
4
Use this option to run the built-in diagnostics, see
Built-in Diagnostics.
Built-in Diagnostics
66 | Operating the monitor
To unlock the button(s).
Press the left directional navigation of Joystick for four seconds until a
menu appears on the screen. The following table describes the options to
unlock the front-panel control buttons.
Select Option:
Options 1
Description Use this option to unlock OSD menu function.
Menu Button unlock
2
Use this option to unlock power button to turn off
the monitor.
Power Button unlock
3
Use this option to unlock OSD menu and power
button to turn off the monitor.
Menu and Power Button unlock
Operating the monitor | 67
Front-panel button Use the buttons on the front of the monitor to adjust the image settings.
Front Panel 1
Description
Use the Up (increase) and Down (decrease) buttons to adjust items in the OSD
menu.
Up
Down
2
Use the Previous button to go back to the previous
menu.
Previous
3
Use the Next button to confirm your selection.
Next
4
Use the Tick button to confirm your selection.
Tick
68 | Operating the monitor
Using the On-Screen Display (OSD) Menu
Accessing the menu system
Icon Menu and Submenus
Brightness/ Contrast
Description Use this menu to activate Brightness/Contrast adjustment.
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Brightness/Contrast Input Source Color Display PIP/PBP USB Audio Menu
Personalize Others
75%
75%
Exit
Brightness Contrast
Brightness adjusts the luminance of the backlight
(minimum 0; maximum 100).
Move the joystick up to increase brightness. Move the joystick down to
decrease brightness.
Adjust the Brightness first, and then adjust Contrast only if further
adjustment is necessary. Move the joystick up to increase contrast and Move
the joystick down to decrease contrast (between 0 and 100).
The Contrast function adjusts the degree of difference between darkness and
lightness on the monitor screen.
Operating the monitor | 69
Icon Menu and Submenus
Input Source
Description
Use the Input Source menu to select between different video inputs that are connected to your monitor.
24/27/34 Monitor
Brightness/Contrast Input Source Color Display PIP/PBP USB Audio Menu Personalize Others
USB-C 90W DP HDMI Auto Select Auto Select for USB-C 90W Rename Inputs Reset Input Source
On Prompt for Multiple Inputs USB-C 90W
Exit
USB-C 90 W DP
HDMI
Auto Select
Auto Select for USB-C 90 W
Rename Inputs
Select USB-C 90 W input when you are using the USB-C 90 W connector. Press the
joystick button to confirm the selection.
Select DP input when you are using the DP (DisplayPort) connector. Press the
joystick button to confirm the selection.
Select the HDMI input when you are using the HDMI connector. Press the
joystick button to confirm the selection.
Turn on the function to allow the monitor to automatically scan for available
input sources. Press the joystick button to confirm the selection.
Allows you to set Auto Select for USB Type-C to: · Prompt for Multiple Inputs:
always show Switch to USB Type-C Video Input message for user to choose
whether to switch or not. · Yes: The monitor always switch to USB Type-C video
without asking while USB Type-C connected. · No: The monitor will NOT auto
switch to USB Type-C video from another available input.
Allows you to Rename Inputs.
70 | Operating the monitor
Icon Menu and Submenus
Reset Input Source
Color
Description
Resets all settings under the Input Source menu to the factory defaults.
Use the Color menu to adjust the color setting mode.
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Brightness/Contrast Input Source Color Display PIP/PBP USB Audio Menu Personalize Others
Preset Modes Input Color Format Reset Color
Standard RGB
Exit
Preset Modes When you select Preset Modes, you can choose Standard, Movie, Game, Warm, Cool or Custom Color from the list.
24/27/34 Monitor
Brightness/Contrast Input Source Color Display PIP/PBP USB Audio Menu Personalize Others
Preset Modes Input Color Format Hue Saturation Reset Color
Standard Movie Game Warm Cool Custom Color
Exit
Operating the monitor | 71
Icon Menu and Submenus
Input Color Format
Description
· Standard: Default Color setting, This monitor uses a low blue light panel,
and is certified by TUV to reduce blue light output and create a more relaxing
and less stimulating image while reading content on the screen.
· Movie: Ideal for movies. · Game: Ideal for most gaming applications.
· Warm: Presents colors at lower color temperatures. The
screen appears warmer with a red/yellow tint.
· Cool: Presents colors at higher color temperatures. The screen appears
cooler with a blue tint.
· Custom Color: Allows you to manually adjust the color settings. Press the
joystick left and right buttons to adjust the Red, Green, and Blue values and
create your own preset color mode.
Allows you to set the video input mode to:
· RGB: Select this option if your monitor is connected to
a computer (or DVD player) using the USB Type-C, DP,
HDMI cable.
· YPbPr: Select this option if your DVD player supports only
YPbPr output.
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Brightness/Contrast Input Source Color Display PIP/PBP USB Audio Menu Personalize Others
Preset Modes Input Color Format Hue Saturation Reset Color
RGB YPbPr
Exit
Hue
Use joystick up or down to adjust the hue from 0 to 100.
NOTE: Hue adjustment is available only for Movie and Game mode.
72 | Operating the monitor
Icon Menu and Submenus Saturation
Reset Color Display
Description
Use joystick up or down to adjust the saturation from 0 to 100. NOTE:
Saturation adjustment is available only for Movie and Game mode. Resets your
monitor’s color settings to the factory defaults. Use the Display menu to
adjust image.
24/27/34 Monitor
Brightness/Contrast Input Source Color Display PIP/PBP USB Audio Menu
Personalize Others
Aspect Ratio Sharpness Response Time MST USB-C Prioritization Reset Display
16:10 50 Normal High Resolution
Exit
Aspect Ratio
Sharpness
Response Time MST (C2422HE/ C2722DE only)
C2422HE: Adjust the image ratio to 16:9, 4:3, 5:4. C2722DE: Adjust the image
ratio to 16:9,Auto Resize, 4:3, 1:1. C3422WE: Adjust the image ratio to
21:9,4:3, 5:4. Makes the image look sharper or softer. Move the joystick up
and down to adjust the sharpness from 0′ to100′. Allows you to set the
Response Time to Normal or Fast.
DP Multi Stream Transport, Set to ON enables MST(DP out), Set to OFF disables
MST function. NOTE: When DP/USB Type-C upstream cable and DP downstream cable
is connected, monitor will set MST = ON automatically, this action will only
be done once after Factory Reset or Display Reset.
Operating the monitor | 73
Icon
Menu and Submenus
Description
USB-C Prioritization (C2722DE only)
Allows you to specify the priority to transfer the data with high resolution (High Resolution) or high speed (High Data Speed) when using the USB Type-C port/DisplayPort. NOTE: If your PC does not have a built-in battery pack and is powered directly from the monitor USB Type-C port (such as the Dell OptiPlex Ultra Desktop), changing USB-C Prioritization on the fly would interrupt the power from monitor to the PC. Please set USB-C Charging to On During Power Off.
Reset Display Resets all settings under the Display menu to the factory defaults.
PIP/PBP (C3422WE only)
This function brings up a window displaying image from another input source.
24/27/34 Monitor
Brightness/Contrast Input Source Color Display PIP/PBP USB Audio Menu Personalize Others
PIP/PBP Mode PIP/PBP (Sub) USB Switch Video Swap Audio Contrast (Sub)
Off USB-C 90 W Main 75
Exit
Main Window
Sub-Window
USB Type-C DP
USB Type-C
DP
NOTE: The images under PBP will be displayed at the center of the screen, not full screen.
74 | Operating the monitor
Icon Menu and Submenus
PIP/PBP Mode
Description
Adjusts the PIP or PBP (Picture by Picture) mode. You can disable this feature by selecting Off.
24/27/34 Monitor
Brightness/Contrast
PIP/PBP Mode
Off
Input Source
PIP/PBP (Sub)
Color Display
USB Switch Video Swap
PIP/PBP USB
Audio Contrast (Sub)
Audio
Menu
Personalize
Others
Exit
Operating the monitor | 75
Icon Menu and Submenus
PIP/PBP (Sub)
Description
Select between the different video signals that may be connected to your monitor for the PBP sub-window. Press the button to select the PBP sub-window source signal.
24/27/34 Monitor
Brightness/Contrast Input Source Color Display PIP/PBP USB Audio Menu
Personalize Others
PIP/PBP Mode PIP/PBP (Sub) USB Switch Video Swap Audio Contrast (Sub)
USB-C 90 W DP HDMI
Exit
USB Switch
Video Swap
Contrast (Sub)
Select to switch between the USB upstream sources in PBP mode. Move the
joystick to switch among USB upstream sources in PBP mode. Select to swap
videos between main window and subwindow in PBP mode. Move the joystick to
swap main window and sub-window. Adjust the contrast level of the picture in
PBP Mode.
Move the joystick to increase or decrease the contrast.
76 | Operating the monitor
Icon Menu and Submenus
USB
Description
Allows you to set the USB upstream port for the DP input signals, thus the
monitor’s USB downstream port (eg. keyboard and mouse) can be used by the
current input signals when you connect a computer to either one of the
upstream ports.
When you use only one upstream port, the connected upstream port is active.
24/27/34 Monitor
Brightness/Contrast Input Source Color Display PIP/PBP USB Audio Menu
Personalize Others
DP assign to HDMI assign to
USB-B USB-B
Exit
NOTE: To prevent data damage or loss, before changing USB upstream ports, make sure that NO USB storage devices are in use by the computer connected to the monitor’s USB upstream port.
Operating the monitor | 77
Icon Menu and Submenus
Audio
Description
Use the Audio Settings menu to adjust the audio settings.
24/27/34 Monitor
Brightness/Contrast Input Source Color Display PIP/PBP USB Audio Menu Personalize Others
Volume Speaker Reset Audio
100 On
Exit
Volume
Speaker Reset Audio
Allows you to increase the speaker volume.
Move the joystick up and down to adjust the volume from 0′ to100′.
Select On or Off the Speaker function. Resets all settings under the Audio
menu to the factory defaults. NOTE:With the USB cable audio volume sync with
windows volume and not to defult settings.
78 | Operating the monitor
Icon Menu and Submenus
Menu
Description
Select this option to adjust the settings of the OSD, such as the languages of the OSD, the amount of time the menu remains on screen, and so on.
24/27/34 Monitor
Brightness/Contrast Input Source Color Display PIP/PBP USB Audio Menu
Personalize Others
Language Rotation Transparency Timer Lock Reset Menu
English Select 20 20s Disable
Exit
Language Set the OSD display to one of eight languages.
(English, Spanish, French, German, Brazilian Portuguese, Russian, Simplified Chinese, or Japanese).
Rotation (C2422HE / C2722DE only)
Rotates the OSD by 0/90/270 degrees. You can adjust the menu according to your display rotation.
Transparency Select this option to change the menu transparency by moving the joystick up or down (min. 0/max. 100).
Timer
OSD Hold Time: Sets the length of time the OSD remains active after you press a button.
Move the joystick to adjust the slider in 1-second increments, from 5 to 60 seconds.
Operating the monitor | 79
Icon Menu and Submenus
Lock
Description
With the control buttons on the monitor locked, you can prevent people from accessing the controls. It also prevents accidental activation in multiple monitors side-by-side setup.
24/27/34 Monitor
Brightness/Contrast Input Source Color Display PIP/PBP USB Audio Menu Personalize Others
Language Rotation Transparency Timer Lock Reset Menu
Menu Buttons Power Button Menu + Power Buttons Disable
Exit
Reset Menu Personalize
· Menu Buttons: Through OSD to lock the Menu buttons. · Power Button: Through
OSD to lock the Power button. · Menu + Power Buttons: Through OSD to lock the
all of
Menu and Power buttons.
· Disable: Move the Joystick left and hold for 4 seconds.
Resets all settings under the Reset menu to the factory defaults.
24/27/34 Monitor
Brightness/Contrast Input Source Color Display PIP/PBP USB Audio Menu
Personalize Others
Shortcut Key 1 Shortcut Key 2 Shortcut Key 3 Shortcut Key 4 Shortcut Key 5 Power Button LED USB-C Charging 90W Other USB Charging Fast Wakeup Reset Personalization
Aspect Ratio Input Source Preset Modes Brightness/Contrast Display Info On in
On Mode Off in Off Mode Off in Standby Mode Off
Exit
80 | Operating the monitor
Icon Menu and Submenus
Description
Shortcut key 1
Shortcut key
2
Shortcut key 3
Select from Preset Modes, Brightness/Contrast, Input Source, Aspect Ratio, Rotation, Display Info set as shortcut key.
Shortcut key
4
Shortcut key 5
Power Button Allows you to set the state of the power light to save
LED
energy.
USB-C Charging 90 W
Allows you to enable or disable USB-C Charging 90 W charging function during monitor power off mode.
Other USB Allows you to enable or disable Other USB Charging
Charging
function during monitor Standby mode.
Fast Wakeup Speed up recovery time from sleep mode. (C3422WE only)
Reset Personalization
Resets all settings under the Personalize menu to the factory preset values.
Operating the monitor | 81
Icon Menu and Submenus
Others
Description
Select this option to adjust the OSD settings such as the DDC/CI, LCD conditioning, and so on.
24/27/34 Monitor
Brightness/Contrast Input Source Color Display PIP/PBP USB Audio Menu Personalize Others
Display Info DDC/CI LCD Conditioning Firmware Service Tag Reset Others Factory Reset
Select On Off M2T101 ABCDEFG ENERGY STAR®
Exit
Display Info DDC/CI
Displays the monitor’s current settings.
DDC/CI (Display Data Channel/Command Interface) allows your monitor parameters
(brightness, color balance, and etc.) to be adjustable via the software on
your computer. You can disable this feature by selecting Off. Enable this
feature for best user experience and optimum performance of your monitor.
24/27/34 Monitor
Brightness/Contrast
Display Info
Input Source
DDC/CI
On
Color
LCD Conditioning
Off
Display
Firmware
PIP/PBP USB
Service Tag Reset Others
Audio
Factory Reset
Menu
Personalize Others
Exit
82 | Operating the monitor
Icon Menu and Submenus
Description
LCD
Helps reduce minor cases of image retention. Depending on
Conditioning the degree of image retention, the program may take some
time to run. You can enable this feature by selecting On.
24/27/34 Monitor
Brightness/Contrast
Display Info
Input Source
DDC/CI
Color
LCD Conditioning
On
Display
Firmware
Off
PIP/PBP USB
Service Tag Reset Others
Audio
Factory Reset
Menu
Personalize Others
Exit
Firmware
Displays the firmware version of your monitor.
Service Tag
Displays the Service Tag. The Service Tag is a unique alphanumeric identifier that allows Dell to identify the product specifications and access warranty information.
NOTE: The Service Tag is also printed on a label located at the back of the cover.
Reset Others Resets all settings under the Others menu to the factory defaults.
Factory Reset
Restores all preset values to the factory default settings.
Operating the monitor | 83
OSD warning messages When the monitor does not support a particular resolution
mode, you can see the following message:
The current input timing is not supported by the monitor display. Please
change your input timing to 1920×1080/2560×1440/3440×1440, 60Hz
or any other monitor listed timing as per monitor specifications.
This means that the monitor cannot synchronize with the signal that it is
receiving from the computer. See Monitor Specifications for the Horizontal and
Vertical frequency ranges addressable by this monitor. Recommended mode is
1920 x 1080 (C2422HE) / 2560 x 1440 (C2722DE) / 3440 x 1440 (C3422WE). You can
see the following message before the DDC/CI function is disabled:
The function of adjusting display setting using PC application will be
disabled.
Do you wish to disable DDC/CI function? Yes No
When the monitor enters the Standby mode, the following message will appear:
Going into Standby mode…
Activate the computer and wake up the monitor to gain access to the OSD.
84 | Operating the monitor
If you press any button other than the power button, the following messages
will appear depending on the selected input:
No DP Signal form your device. Press any key on the keyboard to wake up. If
there is no display, press the monitor joystick
to select input source.
A message is displayed while the cable supporting DP alternate mode is
connected to the monitor under the following conditions: · When Auto Select
for USB-C 90 W is set to Prompt for Multiple Inputs. · When the USB-C cable is
connected to the monitor.
Switch to USB-C Video Input: Yes No
Select OSD items of Factory Reset in Other feature, the following message will
appear:
Are you sure you want to reset to default settings? Yes No
Operating the monitor | 85
When you select Yes to reset to default settings, the following message will
appear:
24/27/34 Monitor
Select Yes’ to enable the following function(s): . Always on USB-C Charging . Other USB Charging Yes No WhenYes’ is selected, power consumption will increase. When No’ is selected, it will comply with ENERGY STAR requirements. Individual settings of the functions can be changed in the Menu. Select OSD items of On in Standby Mode in Personalize feature, the following message will appear: Changing to this setting ( without symbol) will increase power consumption. Do you want to continue? Yes No If adjust the Brightness level above the default level over 75%, the following message will appear: Adjusting to this value will increase power consumpiton above the default level. Do you want to continue? Yes No · When user selects “Yes”, the power message is displayed only once. · When user selectNo’, the power warning message will pop-up again. · The power
warning message will appear again only when the user does a Factory
Reset from the OSD menu.
86 | Operating the monitor
If either USB Type-C / DP / HDMI input is selected and the corresponding cable
is not connected, a floating dialog box as shown below appears.
No DP Cable The display will go into Standby Mode in 4 minutes.
www.dell.com/C24/27/3422XE
or
No USB-C Cable The display will go into Standby Mode in 4 minutes.
www.dell.com/C24/27/3422XE
or
No HDMI Cable The display will go into Standby Mode in 4 minutes.
www.dell.com/C24/27/3422XE
When the webcam module pop out, the the following message will appear:
Webcam + Mic: Enable
When the webcam module pop in (retracted), the following message will appear:
Webcam + Mic: Disabled
Operating the monitor | 87
If the webcam is pop in (retracted) and you press the Mute button, the
following message will appear:
Please pop up webcam + mic module to enable your mic
When the USB upstream cable is not connected, and you press the Teams/
Hookswitch/ Mute button, the following message will appear:
This function is inactive. To enable it,
you need to connect USB upstream to the monitor.
NOTE: For the Teams/ Hookswitch/ Volume down/ Volume up/ Mute buttons to work,
you need to connect the USB upstream cable (Type-A to Type-B or Type-C to
Type-C) from the PC to the monitor. See Troubleshooting for more information.
88 | Operating the monitor
Setting the maximum resolution To set the maximum resolution for the monitor:
In Windows 7, Windows 8 or Windows 8.1:
1. For Windows 8 or Windows 8.1 only, select the Desktop tile to switch to
classic desktop. For Windows Vista and Windows 7, skip this step.
2. Right-click on the desktop and click Screen Resolution. 3. Click the
Dropdown list of the Screen Resolution and select 1920 x 1080
(C2422HE) / 2560 x 1440 (C2722DE) / 3440 x 1440 (C3422WE). 4. Click OK. In
Windows 10 or Windows 11: 1. Right-click on the desktop and click Display
Settings. 2. Click Advanced display settings. 3. Click the dropdown list of
Resolution and select 1920 x 1080 (C2422HE) /
2560 x 1440 (C2722DE) / 3440 x 1440 (C3422WE). 4. Click Apply. If you do not
see 1920 x 1080 (C2422HE) / 2560 x 1440 (C2722DE) / 3440 x 1440 (C3422WE) as
an option, you may need to update your graphics driver. Depending on your
computer, complete one of the following procedures: If you have a Dell desktop
or portable computer: · Go to https://www.dell.com/support, enter your service
tag, and download
the latest driver for your graphics card. If you are using a non-Dell computer
(laptop or desktop):
· Go to your computer manufacturer’s support website and download the latest
graphic drivers.
· Go to your graphics card manufacturer’s website and download the latest
graphic drivers.
Operating the monitor | 89
Setting the KVM USB Switch
To set the KVM USB Switch as Shortcut Key for the monitor: 1. Press the
joystick button to launch the OSD main menu. 2. Move the joystick to select
Personalize.
24/27/34 Monitor
Brightness/Contrast Input Source Color Display PIP/PBP USB Audio Menu
Personalize Others
Shortcut Key 1 Shortcut Key 2 Shortcut Key 3 Shortcut Key 4 Shortcut Key 5 Power Button LED USB-C Charging 90W Other USB Charging Fast Wakeup Reset Personalization
Aspect Ratio Input Source Preset Modes Brightness/Contrast Display Info On in
On Mode Off in Off Mode Off in Standby Mode Off
Exit
3. Move the joystick right to activate the highlighted option. 4. Move the joystick right to activate the Shortcut Key 1 option. 5. Move the joystick up or down to select USB Switch.
Dell 24/27/34 Monitor
Brightness/Contrast Input Source Color Display PIP/PBP USB Audio Menu
Personalize Others
Shortcut Key 1 Shortcut Key 2 Shortcut Key 3 Shortcut Key 4 Shortcut Key 5 Power Button LED USB-C Charging 90W Other USB Charging Fast Wakeup Reset Personalization
Preset Modes Brightness/Contrast Input Source Aspect Ratio PIP/PBP Mode USB
Switch Video Swap Display Info
Exit
6. Press the joystick to confirm selection.
NOTE: KVM USB Switch function only work under PBP Mode (Only for C3422WE).
90 | Operating the monitor
The following are illustrations of several connection scenarios and their USB
Selection menu settings, as illustrated in corresponding color frames.
1. When connecting HDMI + USB-B to computer 1 and DP + USB A to C to computer
2:
1
HDMI
2 1 24 3
DP
USB-B
3
USB A to C
4
NOTE: The USB Type-C connection currently supports only data transfer.
Ensure USB Selection for HDMI is set to USB-B and DP is set to USB-C 90 W.
24/27/34 Monitor
Brightness/Contrast Input Source Color Display PIP/PBP USB Audio Menu
Personalize Others
DP assign to HDMI assign to
USB-B USB-B
Exit
Operating the monitor | 91
2. When connecting HDMI + USB-B to computer 1 and USB Type-C to computer 2:
1
HDMI
1 23
USB-B
3
2
USB Type-C
NOTE: The USB Type-C connection currently supports video and data transfer.
Ensure USB Selection for HDMI is set to USB-B.
24/27/34 Monitor
Brightness/Contrast Input Source Color Display PIP/PBP USB Audio Menu
Personalize Others
DP assign to HDMI assign to
USB-B USB-B
Exit
NOTE: As the USB Type-C port supports the DisplayPort Alternate Mode, there is
no need to set USB Selection for USB Type-C.
NOTE: When connecting to different video input sources not shown above, follow
the same method to make correct settings for USB Selection to pair the ports.
92 | Operating the monitor
Setting the Auto KVM You can follow below instruction to set up Auto KVM for
your monitor:
1. Ensure that PIP/PBP Mode is Off.
24/27/34 Monitor
Brightness/Contrast Input Source Color Display PIP/PBP USB Audio Menu
Personalize Others
PIP/PBP Mode PIP/PBP (Sub) USB Switch Video Swap Audio Contrast (Sub)
Off USB-C 90 W Main 75
Exit
NOTE: This PIP/PBP function is for C3422WE only. 2. Ensure that Auto Select is On and Auto Select for USB-C is Yes.
24/27/34 Monitor
Brightness/Contrast Input Source Color Display PIP/PBP USB Audio Menu
Personalize Others
USB-C 90W DP HDMI Auto Select Auto Select for USB-C 90W Rename Inputs Reset Input Source
On Prompt for Multiple Inputs USB-C 90W
Exit
Operating the monitor | 93
24/27/34 Monitor
Brightness/Contrast Input Source Color Display PIP/PBP USB Audio Menu
Personalize Others
USB-C 90W DP HDMI Auto Select Auto Select for USB-C Rename Inputs Reset Input Source
Prompt for Multiple Inputs Yes No
Exit
3. Ensure that the USB ports and the video inputs are paired accordingly.
24/27/34 Monitor
Brightness/Contrast Input Source Color Display PIP/PBP USB Audio Menu
Personalize Others
DP assign to HDMI assign to
USB-B USB-B
Exit
NOTE: For USB Type-C connection, there is no further setting required.
94 | Operating the monitor
Setting up Windows Hello
In Windows® 10/Windows® 11 : Click Windows start menu, click Settings.
Click Accounts.
Windows 10
Windows 11
Click Sign-in options. You must set up a PIN before you can enroll in Windows Hello.
Operating the monitor | 95
Click Add under PIN enter to Set up a PIN. Enter New PIN and Confirm PIN, and
thenclick OK.
Once you’ve done that, the options to set up Windows Hello will unlock. Click
Set up under Windows Hello, enter to Windows Hello setup.
96 | Operating the monitor
The following message is displayed, click Get started. Keep looking directly
at your screen and position yourself so that your face is in the center of the
frame that appears on screen. The webcam will then register your face.
Operating the monitor | 97
When the following message is displayed, click Close to exit Windows Hello
setup. Once you have set up, you have another option to improve the
recognition. Click Improve recognition if necessary.
98 | Operating the monitor
Setting up the monitor webcam as default setting
When using a notebook with built-in webcam to connect this monitor, in the
device manager interface, you can find the notebook built-in webcam and the
monitor webcam. Normally, they are in enable status, and the default setting
is using notebook built-in webcam.
If you want to set up the monitor webcam as default setting, you need disable
the notebook built-in webcam. To identify the notebook built-in webcam and
disable it, please follow below instructions: Right-click Dell Monitor IR
Webcam, and click Properties to open the Dell Monitor IR Webcam Properties.
Operating the monitor | 99
Click Details > Property and select Hardware Ids. 100 | Operating the monitor
The Value will show the detail hardware ids of this Dell Monitor IR Webcam.
The hardware ids of the notebook built-in webcam and the monitor webcam are
different. For C2422HE/C2722DE/C3422WE, the monitor webcam hardware ids will
show as below:
Right click the PC/Notebook webcam which has different hardware ids , and then
click Disable.
Operating the monitor | 101
The following message is displayed: Click Yes. The notebook webcam is now
disabled and the monitor webcam will be used as the default setting. Restart
the notebook.
102 | Operating the monitor
Setting up the monitor speaker as default setting
When your computer connects multiple speakers, if you want to set up the
monitor speaker as default setting, please follow below instructions: Right-
click Volume in the Windows task bar notification area. Click Playback devices
enter to Sound setting interface.
If only the HDMI or DP cable is connected from your monitor to the computer,
only one speaker named DELL C2422HE/C2722DE/C3422WE from the monitor will show
in the Sound setting interface.
Operating the monitor | 103
Click DELL C2422HE/C2722DE/C3422WE, and then click Set Default, the monitor
speaker will be used as the default setting.
Click OK to exit the Sound setting.
If the USB cable and the HDMI or DP cable are connected from monitor to the
computer, two audio paths named DELL C2422HE/C2722DE/C3422WE and Echo
Cancelling Speakerphone (C2422HE/C2722DE/C3422WE) from the monitor will show
in the Sound setting interface. The C2422HE/C2722DE/C3422WE monitor would show
options for two audio paths supported in the monitor. 104 | Operating the
monitor
· Echo Cancelling Speakerphone (C2422HE/C2722DE/C3422WE) audio path is where
audio streams through USB. This is either through USB-C to USB-C cable or
USB-A to USB-B cable. As the microphone path streams from monitor back to PC
through USB, this selection is required for VolP/UC conference applications.
Audio Recording and Playback will work under this selection.
· DELL C2422HE/C2722DE/C3422WE audio path is where audio streams through HDMI/
DP/ DP alternate mode. Under this selection, there will not be microphone
support. This selection is suitable for Audio Playback only.
Audio Playback performance would be the same for either audio path selection.
Under normal Playback with USB-C to USB-C/USB-A to USB-B and/or for UC
conference applications, default selecting the Echo Cancelling Speakerphone
(C2422HE/ C2722DE/C3422WE) audio path is recommended.
NOTE: If you select DELL C2422HE/C2722DE/C3422WE audio path, please ensure
that the Echo Cancelling Speakerphone (C2422HE/C2722DE/ C3422WE) volume is set
to medium or high. Else, the DELL C2422HE/C2722DE/ C3422WE maximum volume may
sound soft because it is limited by the Echo Cancelling Speakerphone
(C2422HE/C2722DE/C3422WE) volume. For example, when the Echo Cancelling
Speakerphone (C2422HE/C2722DE/ C3422WE) volume is at 50%, and the DELL
C2422HE/C2722DE/C3422WE volume is set to 100% will have the same sound level
as the former.
Operating the monitor | 105
Troubleshooting
WARNING: Before you begin any of the procedures in this section, follow the
Safety Instructions.
Self-test
Your monitor provides a self-test feature that allows you to check whether
your monitor is functioning properly. If your monitor and computer are
properly connected but the monitor screen remains dark, run the monitor self-
test by performing the following steps:
1. Turn off both your computer and the monitor. 2. Unplug the video cable
from the back of the computer. To ensure proper Self-Test
operation, remove all digital and the analog cables from the back of computer.
3. Turn on the monitor. The floating dialog box should appear on-screen
(against a black background), if the monitor cannot sense a video signal and
is working correctly. While in self-test mode, the power LED remains white.
Also, depending upon the selected input, one of the dialogs shown below will
continuously scroll through the screen.
No DP Cable The display will go into Standby Mode in 4 minutes.
www.dell.com/C24/27/3422XE
or
No USB-C Cable The display will go into Standby Mode in 4 minutes.
www.dell.com/C24/27/3422XE
4. This box also appears during normal system operation if the video cable
becomesdisconnected or damaged.
5. Turn off your monitor and reconnect the video cable; then turn on both
your computer and the monitor.
If your monitor screen remains blank after you use the previous procedure,
check your video controller and computer, because your monitor is functioning
properly.
106 | Troubleshooting
Built-in diagnostics
Your monitor has a built-in diagnostic tool that helps you determine if the
screen abnormality you are experiencing is an inherent problem with your
monitor, or with your computer and video card.
Display Info
To run the built-in diagnostics: 1. Ensure that the screen is clean (no dust
particles on the surface of the screen). 2. Press and hold Up or Down or Left
or Right direction for four seconds until a menu appears on the screen. 3.
Using the joystick control, highlight the Diagnostics option and press the
joystick button to start the diagnostics. A gray screen is displayed. 4.
Observe if the screen has any defects or abnormalities. 5. Toggle the joystick
once again until a red screen is displayed. 6. Observe if the screen has any
defects or abnormalities. 7. Repeat steps 5 and 6 until the screen displays
green, blue, black, and white colors. Note any abnormalities or defects.
The test is complete when a text screen is displayed. To exit, toggle the
joystick control again. If you do not detect any screen abnormalities upon
using the built-in diagnostic tool, the monitor is functioning properly. Check
the video card and computer.
Troubleshooting | 107
Common Problems
The following table contains general information about common monitor problems you might encounter and the possible solutions:
Common Symptoms No Video/ Power LED off
No Video/ Power LED on
Missing Pixels
Stuck-on Pixels
Brightness Problems
What you experience No picture
No picture or no brightness
LCD screen has spots
LCD screen has bright spots
Picture too dim or too bright
Possible solutions
· Ensure that the video cable connecting the monitor and the computer is
properly connected and secure.
· Verify that the power outlet is functioning properly using any other
electrical equipment.
· Ensure that the power button is depressed fully.
· Ensure that the correct input source is selected in the Input Source menu.
· Increase brightness and contrast controls via OSD.
· Perform monitor self-test feature check. · Check for bent or broken pins in
the video
cable connector. · Run the built-in diagnostics. · Ensure that the correct
input source is
selected in the Input Source menu.
· Cycle power on-off. · Pixel that is permanently off is a natural defect
that can occur in LCD technology. · For more information on Dell Monitor
Quality
and Pixel Policy, see Dell Support site at:
https://www.dell.com/pixelguidelines.
· Cycle power On-Off. · Pixel that is permanently off is a natural defect
that can occur in LCD technology. · For more information on Dell Monitor
Quality
and PixelPolicy, see Dell Support site at:
https://www.dell.com/pixelguidelines.
· Reset the monitor to factory settings. · Adjust brightness and contrast
controls via
OSD.
108 | Troubleshooting
Common Symptoms
What you experience
Possible solutions
Safety Related Visible signs of · Do not perform any troubleshooting steps.
Issues
smoke or sparks · Contact Dell immediately.
Intermittent Problems
Monitor malfunctions on & off
· Ensure that the video cable connecting the monitor to the computer is
connected properly and is secure.
· Reset the monitor to factory settings. · Perform monitor self-test feature
check to
determine if the intermittent problem occurs in self-test mode.
Missing Color Picture missing color
· Perform monitor self-test. · Ensure that the video cable connecting
the monitor to the computer is connected properly and is secure. · Check for
bent or broken pins in the video cable connector.
Wrong Color
Picture color not good
· Change the settings of the Preset Modes in the Color menu OSD depending on
the application.
· Adjust R/G/B value under Custom Color in Color menu OSD.
· Change the Input Color Format to PC RGB or YPbPr in the Color menu OSD.
· Run the built-in diagnostics.
Image retention Faint shadow from · Set the screen to turn off after a few minutes
from a static the static image of screen idle time. These can be adjusted in
image left on displayed appears Windows Power Options or Mac Energy Saver
the monitor for on the screen
setting.
a long period of
· Alternatively, use a dynamically changing
time
screensaver.
Troubleshooting | 109
Common Symptoms
Mic/Webcam does not work
What you experience
Possible solutions
· Webcam module · Pop up the webcam module.
not pop up
· Plug in the USB Cable (Type-A to Type-B or
· USB cable
Type-C to Type-C), and if you connect both
not plug in or
USB-B port and USB-C port, please switch
not select the
the USB source in the OSD menu.
correct USB
· Select the monitor Mic/webcam as the
source
default in the PC side.
· Not set the
monitor Mic/
webcam as the
default device
Product specific problems
Problem
What you experience
Possible solutions
Screen image is too small
Image is centered on screen, but does not fill entire viewing area
· Check the Aspect Ratio setting in the Display menu OSD.
· Reset the monitor to factory settings.
Cannot adjust the monitor with the joystick control on the rear of the monitor
OSD does not appear on the screen
· Turn off the monitor, unplug the monitor power cable, plug it back, and then turn on the monitor.
No Input Signal when user controls are pressed
No picture, the · Check the signal source. Ensure the computer LED light is
white is not in the power saving mode by moving the
mouse or pressing any key on the keyboard. · Check whether the signal cable is
plugged
in properly. Connect the signal cable again, if necessary. · Reset the
computer or video player.
110 | Troubleshooting
Problem
The picture does not fill the entire screen
No image when using DP connection to the PC
What you experience
The picture cannot fill the height or width of the screen
Blank screen
No image when using USB Type-C connection to computer, laptop, and so on
Blank screen
No charging when using USB Type-C connection to computer, laptop, and so on
No charging
Possible solutions
· Due to different video formats (aspect ratio) of DVDs, the monitor may
display in full screen.
· Run the built-in diagnostics.
· Verify which DP standard (C2422HE/ C3422WE:DP 1.1a or DP 1.2)(C2722DE:DP
1.1a or DP 1.4) is your Graphics Card certified to. Download and install the
latest graphics card driver.
· Some DP 1.1a graphics card cannot support DP
1.2(C2422HE/C3422WE),DP1.4(C2722DE) monitors. Go to OSD menu, under Input
Source selection, press and hold DP select joystick key for 8 seconds to
change the monitor setting from DP 1.2 to DP 1.1a, DP 1.4 to DP 1.1a
· Verify if the USB Type-C interface of the device can support DP alternate
mode.
· Verify if the device required more than 90 W power charging.
· USB Type-C interface of device cannot support DP alternate mode.
· Set Windows to Projection mode. · Ensure that the USB Type-C cable is not
damaged.
· Verify if the device can support one of 5 V/9 V/15 V/20 V charging profiles.
· Verify if the Notebook requires a >90 W power adaptor.
· If the Notebook requires a >90 W power adaptor, it may not charge with the
USB Type-C connection.
· Ensure that you use only Dell approved adapter or the adapter that comes
with the product.
· Ensure that the USB Type-C cable is not damaged.
Troubleshooting | 111
Problem
What you experience
Intermittent charging when using USB Type-C connection to computer,
Intermittent charging
laptop, and so on
No image when Blank screen or
using USB Type-C MST
2nd DUT is not Prime mode
No network connection
Network dropped or Intermittent
Possible solutions
· Check if the maximum power consumption of device is over 90 W.
· Ensure that you use only Dell approved adapter or the adapter that comes
with the product.
· Ensure that the USB Type-C cable is not damaged.
· USB Type-C input, Go to OSD menu, under Display Info check the Link Rate is
HBR2 or HBR3, if Link Rate is HBR2, suggest to use USB Type-C to DP cable to
turn on MST.
· Do not toggle Off/On the power button when network is connected, keeps the
power button On.
The LAN port is OS setting or · Ensure that the latest BIOS and drivers for your
not functioning cable connection computer are installed on your computer.
issue
· Ensure that the RealTek Gigabit Ethernet
Controller is installed in the Windows Device
Manager.
· If your BIOS Setup has a LAN/GBE Enabled/
Disabled option, make sure it is set to Enabled.
· Ensure that the Ethernet cable is connected
securely on the monitor and the hub/router/
firewall.
· Check the status LED of the Ethernet cable to
confirm connectivity. Re-connect both ends of
the Ethernet cable if the LED is not lit.
· First power off the Computer and unplug the
Type-C cable and power cord of the monitor.
Then, power on the computer, plug in the
monitor power cord and Type-C cable.
112 | Troubleshooting
Problem
Monitor buttons (Mute / Volume down / Volume up / Hookswitch) not working with
Microsoft Teams® App
Video recording not working
What you experience
Possible solutions
Monitor
Use Microsoft Teams® App to perform the below
buttons (Mute tasks:
/ Volume down · Call Icon to accept / hang up call
/ Volume up / · Volume down / Volume up adjustment
Hookswitch) · Mic mute / unmute
not working
· Camera on / off
on Microsoft
Teams® App with
Chrome OS /
Ubuntu
Video recording · Windows 7 not support App not working · Switch to Windows 10/Windows 11 with Win 7
Headset with Headset with Mic (3.5mm Mic (3.5mm combo jack) not combo jack)
not working with working with monitor mute / monitor mute / unmute button
unmute button
when camera module is pop in (retracted)
· Use UC App (e.g. Microsoft Teams, Skype for Business, Zoom, etc.) Mic Icon to mute / unmute
When press When press
Connect USB-A to USB-B cable
either Volume either Volume
down / Volume down / Volume
up or Mute
up or Mute
button, LED not button, LED
blink
not blink when
connected to
HDMI or DP only
Webcam or Mic Webcam or Mic Connect USB-A to USB-B cable not working not
working
when connected to HDMI or DP only
Troubleshooting | 113
Problem
What you experience
Ethernet port (RJ45) cannot connect to internet
Ethernet port (RJ45) cannot connect to internet on Win 10/Win 11
Microphone not Microphone not
working or not working or not
detect
detect on the
Voice recorder
App with Intel
Gen 11th CPU
(Tiger Lake)
platform
No sound can be heard from recorded video
No sound can be heard from recorded video with Intel Gen 11th CPU (Tiger Lake) platform
When press When press either Volume either Volume down/ Volume down/ Volume
up, OSD volume up, OSD volume bar response is bar response is lagging/delayed
lagging/delayed
with monitor connected to Intel Gen 11th CPU (Tiger Lake) platform
Possible solutions
Change the LAN Controller Power Saving from Enable to Disable
· Disable Intel Smart Sound Technology for USB Audio driver in the Device
Manager and re-boot the PC
· Alternatively, you may choose to download the C2422HE/C2722DE/C3422WE
Monitor firmware version M2T104/M3T104/M2T104 respectively or higher. Go to
https://www.dell.com/support
· Disable Intel Smart Sound Technology for USB Audio driver in the Device
Manager and re-boot the PC
· Alternatively, you may choose to download the C2422HE/C2722DE/C3422WE
Monitor firmware version M2T104/M3T104/M2T104 respectively or higher. Go to
https://www.dell.com/support
· Disable Intel Smart Sound Technology for USB Audio driver in the Device
Manager and re-boot the PC
· Alternatively, you may choose to download the C2422HE/C2722DE/C3422WE
Monitor firmware version M2T104/M3T104/M2T104 respectively or higher. Go to
https://www.dell.com/support
114 | Troubleshooting
Problem
No sound coming from the speakers
What you experience
Possible solutions
No sound
· Ensure that you have set the default playback
coming from the device as Echo Cancelling Speakerphone
speakers when (C2422HE/C2722DE/C3422WE) or DELL
play audio/video C2422HE/C2722DE/C3422WE on your system.
on your system · Turn Off the monitor, unplug the monitor power
cord, replug it, and then turn On the monitor.
· Reset the monitor to Factory Settings.
Speaker volume Speaker volume · Increase the speaker volume of DELL
is low / sounds is low / sounds C2422HE/C2722DE/C3422WE to maximum in
soft
soft when
the Sound setting interface
speaker option is · Press the Volume Up button to increase the
DELL C2422HE/ speaker volume of DELL C2422HE/C2722DE/
C2722DE/
C3422WE
C3422WE in · If you select DELL C2422HE/C2722DE/
Sound setting C3422WE audio path, please ensure that the
interface
Echo Cancelling Speakerphone (C2422HE/
C2722DE/C3422WE) volume is set to
medium or high. Else, the DELL C2422HE/
C2722DE/C3422WE maximum volume may
sound soft because it is limited by the Echo
Cancelling Speakerphone (C2422HE/
C2722DE/C3422WE) volume. For example,
when the Echo Cancelling Speakerphone
(C2422HE/C2722DE/C3422WE) volume is
at 50%, and the DELL C2422HE/C2722DE/
C3422WE volume is set to 100% will have the
same sound level as the former.
Webcam is not detected
Webcam is not · Ensure that the webcam module is popped up.
detected in the · Ensure that the USB upstream cable is
Windows Device connected between the monitor and the
Manager
computer or notebook.
· Reconnect the USB upstream cable to the
computer or notebook.
Troubleshooting | 115
Problem
What you experience
Possible solutions
Webcam
Could not detect · Reset the monitor to Factory Settings.
cannot connect Monitor camera · Turn Off the monitor, unplug the monitor power
/ Webcam
/ Could not
cord, replug it, and then turn On the monitor.
disconnected switch back to · Select the Monitor camera again in the
the PC camera Camera / Video setting of your UC conference
application.
Microphone is muted
Microphone is · Ensure that the webcam & mic module is
muted in the
popped up.
Windows Device · Ensure that the USB upstream cable is
Manager
connected between the monitor and the
computer or notebook.
· Reconnect the USB upstream cable to the
computer or notebook.
· Ensure that the microphone is enabled/
unmuted on the monitor. If the microphone
mute LED is lighting up in static red (indicates
microphone muted), press the microphone
button to unmute the microphone.
· Ensure that the monitor’s microphone is
selected and enabled/unmuted on the setting in
the UC application.
Microphone volume is low / sounds soft
Microphone
· Ensure that the webcam module is popped up.
volume is low
The Mute button’s LED will go dark (indicates
/ sounds soft
microphone unmuted).
to the other
· Adjust the distance between the user and
participant when the microphone. The user should avoid sitting
in audio/video too far away from the microphone. The most
call
optimum distance between the user and the
microphone is 70 cm.
· Ensure that the monitor’s microphone is
selected and enabled/unmuted on the setting in
the UC application.
· Increase the microphone volume in the Sound
setting interface at the PC side / in the UC
application.
116 | Troubleshooting
Problem Front buttons don’t work
Webcam image looks overexposed
Webcam image looks grainy / dark Webcam image looks blurry
What you experience No response on the UC application when press on the
buttons located on the speaker
Webcam image shows over-exposed background
Webcam image appears grainy / dark
Webcam image appears blurry / not clear.
Possible solutions
· Ensure that the USB upstream cable (Type-A to Type-B or Type-C to Type-C) is
connected from the PC to the monitor.
· Ensure that the webcam module is popped up. · For some UC platforms /
applications, the
Mute function works by pressing the Mute button, but the Mute Icon on the UC
platform is not sync (Icon shows unmute). For more information, see Unified
Communications (UC) Platform Compatibility List.
· Adjust the environment lighting condition. Ensure the monitor is setup at a
well lighted environment, preferably under ceiling lights. The user should
avoid a dim / dark background. The user should avoid direct facing a window
with bright sunlight.
· Alternatively, you may choose to download the C2422HE/C2722DE/C3422WE
Monitor firmware version M2T105/M3T105/M2T105 respectively or higher, which
improves the auto exposure (AE) feature of the webcam. Go to
https://www.dell.com/support.
· Adjust the environment lighting condition. Ensure the monitor is setup at a
well lighted environment, preferably under ceiling lights. The user should
avoid a dim environment.
· Peel off the transparent protective film which originally sticked on the
front of the webcam.
· If the protective film is already peeled off, use a clean and slightly damp
cloth to wipe the surface of the front webcam.
· Adjust the distance between the user and the camera. The user should avoid
sitting too far away from the camera. The most optimum distance between the
user and the camera is 70 cm.
Troubleshooting | 117
Microsoft® Teams® / Skype for Business® specific problems
Problem The Teams button is not working
The Hookswitch button is not working
The Mute button is not working
Webcam no image
What you experience
Possible solutions
Short press
· Ensure that the USB upstream cable (Type-A
on the Teams to Type-B or Type-C to Type-C) is connected
button does not from the PC to the monitor.
bring up Teams · Ensure that the Teams application is signed in
application to the and is already running at the background. The
foreground
Teams button’s LED will light in static white.
· Ensure that the Teams account is provisioned
/ setup as `Teams Only’ mode. The tenant
administrator should enable the account to
`Teams Only’ mode.
· Teams button will only work with Teams
application in `Teams Only’ mode. Setting
might vary in corporate environment, resulting
in Teams button not working on the monitor.
Please check with your system administrator.
Short press on · Ensure that the USB upstream cable (Type-A
the Hookswitch to Type-B or Type-C to Type-C) is connected
button does not from the PC to the monitor.
answer call
· Ensure that the Teams account is provisioned
/ setup as `Teams Only’ mode. The tenant
administrator should enable the account to
`Teams Only’ mode.
Press on the Mute button does not mute and unmute microphone
· Ensure that the USB upstream cable (Type-A to Type-B or Type-C to Type-C) is
connected from the PC to the monitor.
· Ensure that the webcam module is popped up. The Mute button’s LED will go
dark (indicates microphone unmuted).
· Ensure that the Teams account is provisioned / setup as Teams Only’ mode. The tenant administrator should enable the account toTeams Only’ mode.
Webcam no image when using Skype for Business (SfB)
· Ensure that the webcam module is popped up. · Select `DELL Monitor RGB
Webcam’ as the
camera in Skype Video Device setting.
118 | Troubleshooting
Problem
Webcam being occupied
What you experience
Webcam being occupied and can’t be used
Possible solutions
· Ensure that the webcam module is popped up. · Avoid running multiple
conference softwares at
the same time. While you are using conference software A’, close the other conference software B’.
Troubleshooting | 119
Universal Serial Bus (USB) specific problems
Specific Symptoms
What you experience
Possible solutions
USB interface is USB peripherals not working are not working
· Check that your display is turned ON. · Reconnect the upstream cable to your
computer. · Reconnect the USB peripherals (downstream
connector). · Turn off the monitor and turn it on again. · Reboot the
computer. · Certain USB devices such as portable hard
drives require higher power source; connect the drive to the computer
directly.
super speed USB 3.2 Gen 1 interface is slow.
super speed
· Check that your computer is USB 3.0-capable.
USB 3.2 Gen · Some computers have USB 3.0, USB 2.0, and
1 peripherals
USB 1.1 ports. Ensure that the correct USB port
working slowly or is used.
not working at all · Reconnect the upstream cable to your
computer.
· Reconnect the USB peripherals (downstream
connector).
· Reboot the computer.
Wireless USB Wireless USB peripherals stop peripherals working when a
responding USB 3.0 device slowly or only is plugged in working as
the distance between itself and its receiver decreases
· Increase the distance between the USB 3.0 peripherals and the wireless USB
receiver.
· Position your wireless USB receiver as close as possible to the wireless USB
peripherals.
· Use a USB-extender cable to position the wireless USB receiver as far away
as possible from the USB 3.0 port.
USB is not working
No USB functionalities
Refer to input source and USB pairing table.
120 | Troubleshooting
Appendix
FCC notices (U.S. only) and other regulatory information
For FCC notices and other regulatory information, see the regulatory
compliance website located at https://www.dell.com/regulatory_compliance.
Contacting Dell
For customers in the United States, call 800-WWW-DELL
(800-999-3355). NOTE: If you do not
have an active Internet connection, you can find contact information on your
purchase invoice, packing slip, bill, or Dell product catalog.
Dell provides several online and telephone-based support and service options.
Availability varies by country and product, and some services may not be
available in your area. To get online Monitor support content:
See https://www.dell.com/support/monitors. To contact Dell for sales,
technical support, or customer service issues:
1. Go to https://www.dell.com/support. 2. Verify your country or region in
the Choose A Country/Region drop-down menu
at the bottom-right corner of the page. 3. Click Contact Us next to the
country dropdown. 4. Select the appropriate service or support link based on
your need. 5. Choose the method of contacting Dell that is convenient for you.
EU product database for energy label and product information sheet
C2422HE: https://eprel.ec.europa.eu/qr/394427 C2422HE WOST:
https://eprel.ec.europa.eu/qr/420518 C2722DE:
https://eprel.ec.europa.eu/qr/394149 C3422WE:
https://eprel.ec.europa.eu/qr/402022
Appendix | 121
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