DELL P2423 Smart Monitor User Guide

June 5, 2024
Dell

Dell P2423 Monitor
Dell Display Manager
User’s Guide
Model: P2423

Regulatory model: P2423b

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.

Overview

Dell Display Manager (DDM) is a Microsoft Windows application used to manage a monitor or a group of monitors. It allows manual adjustment of the displayed image,  assignment of automatic settings, energy management, window organization,  image rotation, and other features on selected Dell monitors. Once installed, Dell Display  Manager runs each time the system starts and places its icon in the notification tray. Information about monitors connected to the system is available when hovering over the notification-tray icon.

Alternatively, you may launch DDM by right-clicking on the desktop background to select Dell Display Manager from the desktop menu.
NOTE: Dell Display Manager uses DDC/CI channel to communicate with your monitor. Ensure DDC/CI is enabled in the menu as below.

DELL P2423 Smart Monitor - Fig 1

Using the Quick Settings dialog

Clicking Dell Display Manager’s notification tray icon opens the Quick Settings dialog box. When more than one supported Dell monitor is connected to the computer, a specific target monitor can be selected using the menu. The Quick Settings dialog box enables you to easily adjust the brightness, contrast, resolution, window layout, and so on. You can select Manual Mode or Auto Mode, and the screen resolution can be changed. DELL P2423 Smart
Monitor - dialog

The Quick Settings dialog box also provides access to Dell Display Manager’s advanced user interface that is used to adjust basic functions, configure auto mode, and access other features.

Feature Function Description

Quick DDM
Access| Quick key to
call up DDM UI| Ctrl+Shift+D
| Control individual monitor in multiple
monitor setup| • Select the monitor from the dropdown box. If more than one monitor is connected to your computer, an icon appears on the selected monitor for a second so you know which monitor you have selected.
• Perform monitor self-test feature check.
• Move DDM UI to the monitor to be controlled.
• Press Ctrl+Shift+D to bring up the mini UI under the mouse pointer.

Setting basic display functions

Select Manual Mode which enables you to manually select a preset mode or select Auto Mode applies a preset mode based on the active application. An onscreen message displays the current preset mode whenever it changes. The selected monitor’s Brightness and Contrast can also be directly adjusted from the Basic tab.

DELL P2423 Smart Monitor - dialog1

NOTE: When multiple Dell monitors are connected, select “Enable display matrix control” to apply brightness, contrast, and color preset controls to all monitors.

DELL P2423 Smart Monitor - Brightness

Assigning preset modes to applications

The Auto Mode tab allows you to associate a specific Preset Mode with a specific application, and apply it automatically. When Auto Mode is enabled, Dell Display  Manager  automatically switches to the corresponding Preset Mode whenever the associated application is activated. The Preset Mode assigned to a particular application may be the same on each connected monitor, or it can vary from one monitor to another.
Dell Display Manager is pre-configured for many popular applications. To add a new application to the assignment list, simply drag the application from the desktop, Windows  Start Menu, or elsewhere, and drop it onto the current list.

DELL P2423 Smart Monitor - dialog2

Organizing windows with Easy Arrange

Easy Arrange helps you to effectively organize your application windows on the desktop. You first choose a pre-defined layout pattern that suits your work, then you just need to drag the application windows into the defined zones. Press “>” or use the Page Up/Page Down key to find more layouts.
To create a custom layout, right-click on the thumbnail with a tiny triangle at the bottom right corner, arrange the numbers of rows and columns in the open window, and then click OK to set up your preferred arrangement.

DELL P2423 Smart Monitor - dialog3

You can apply different window layouts for each of the virtual desktops.
If you often use the Windows snap feature, you can select “Hold down the SHIFT key to enable zone positioning”. This gives Windows snap priority over Easy Arrange. You will then need to hold down the Shift key to use Easy Arrange positioning.DELL P2423 Smart Monitor - dialog3

If you are using multiple similar monitors in an array or matrix, the Easy Arrange layout can be applied across all the monitors as one desktop. Select “ Span multiple monitors” to enable this feature. You need to align your monitors properly to make them effective.

DELL P2423 Smart Monitor - Fig2

There are other advanced ways the usage of Easy Arrange. Refer to the table below.

Feature Function Description

Enhanced Easy
Arrange| Custom layouts| • Save and name 5 customized Easy Arrange patterns.
• Configure x*y patterns.
| 6 MRU (most recently used) layouts| • Press Ctrl+Shift+Home to cycle among the last 6 MRU layouts.
On-the-fly partition resizing| • Hold down Ctrl while resizing the current Easy Arrange layout to adjust the size and numbers of cells in a layout.
•Newly formed Easy Arrange pattern is saved into the Easy Arrange icon position.
• Hold down Ctrl while clicking on a modified layout icon to restore it to the default layout.
Easy Arrange layouts for portrait mode| • Portrait mode Easy Arrange icons are presented when the monitor is rotated.

NOTE: Some application requires a minimum effective resolution for their window. The application may not fit in an Easy Arrange zone if the zone is smaller than the required window size.

Managing multiple video inputs

The Input Manager tab provides convenient ways for you to manage multiple video inputs connected to your Dell monitor. This makes it very easy to switch between inputs while working with multiple computers.
All video input ports available to your monitor are listed. You can give each input a name as you like. Please save your changes after editing.
You can define a shortcut key to quickly switch to your favorite input and another shortcut key to quickly switch between two inputs if you often work between them.DELL P2423 Smart Monitor - Fig3

You can use the dropdown list to switch to any input source.

DELL P2423 Smart Monitor - Fig4

NOTE: DDM communicates with your monitor even when the monitor is displaying video from another computer. You can install DDM on the PC you frequently use and control input switching from it. You may also install DDM on other PCs connected to the monitor.

Restoring application positions

DDM can help you restore application windows into their positions when you reconnect your PC to the monitor(s). You can quickly access this feature by right-clicking on the DDM icon in the notification tray.

If you choose “Auto-restore window layout”, your application windows’ positions are tracked and remembered by DDM. DDM automatically puts the application windows into their original positions when you reconnect your PC to your monitor(s).

To go back to a favorite layout, first, select “Save current window layout” and then “Restore saved window layout”.
You may use monitors with different models or resolutions in your daily routine, and apply different window layouts to them. DDM is able to know the monitor you have reconnected and restore application positions accordingly.
In case you need to replace a monitor in a monitor matrix configuration, you can save the window layout before replacement and restore the layout after a new monitor is installed.

NOTE: You should keep your applications running in order to benefit from this feature. DDM doesn’t launch applications.

Attaching DDM to active windows (only Windows 10)

For Windows 10, you can add the DDM shortcut icon to the toolbar region of active windows. To activate this feature, right-click on the DDM icon in the notification tray and choose Attach to active window from the opened menu.

Once you right-click the icon in the toolbar, a quick menu of DDM appears, displaying options under Auto Mode and Easy Arrange for you to easily make adjustments.DELL P2423 Smart Monitor - Fig8

Applying energy conservation features

The Options tab provides PowerNap energy conservation options and allows you to customize keyboard shortcuts.
In the upper pane, you can choose to set the monitor’s brightness to the minimum level or to put the monitor to sleep when the screensaver is activated.

Other shortcut keys

You can define the shortcut keys for quick access to the following DDM functions:

Program shortcut key : to quickly open the Quick Settings dialog box.

  • Easy Arrange MRU shortcut key: to quickly apply the 6 recently used window layouts.
  • Application window shortcut key: to launch a quick menu for options under Auto Mode and Easy Arrange.

DELL P2423 Smart Monitor - Fig9

Troubleshooting

If DDM cannot work with your monitor, DDM will show the following icon in your notification tray.

DELL P2423 Smart Monitor - Fig10

Click on the icon, and DDM shows a more detailed error message.

DELL P2423 Smart Monitor - Fig11

Please note that DDM only works with Dell-branded monitors. If you are using monitors from other manufacturers, DDM doesn’t support them.
If DDM is unable to detect and/or communicate with a supported Dell monitor, please take the following actions to troubleshoot:

  1.  Make sure the video cable is properly connected to your monitor and your PC, especially the connectors should be firmly inserted into position.
  2. Check the monitor OSD to ensure DDC/CI is enabled.
  3.  Make sure you have the correct and latest display driver from the graphics vendor (Intel, AMD, NVIDIA, etc.). The display driver is often the cause of DDM  failure.
  4. Remove any docking stations or cable extenders or converters between the monitor and the graphics port. Some low-cost extenders, hubs, or converters may not support  DDC/CI properly and can fail DDM. Update the driver of such a device if the latest version is available.
  5. Restart your system. DDM may not work with the below monitors:
    • Dell monitor models earlier than the year 2013 and D-series of Dell monitors. You can refer to Dell Product Support websites for more information
    • Gaming monitors using NVIDIA-based G-sync technology
    • Virtual and wireless displays do not support DDC/CI
    • Some early models of DP 1.2 monitors, it may be necessary to disable MST/DP 1.2 using the monitor OSD
    If your PC is connected to the Internet, you will be prompted with a message when a newer version of the DDM application is available. It is recommended to download and install the latest DDM application.
    You may also check for a new version by right-clicking on the DDM icon while pressing and holding the ‘shift’ key.

DELL P2423 Smart Monitor - Fig12

Copyright © 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.

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