DELL 24 P2421 User Manual

Dell 24 Monitor - P2421

Dell Display Manager

User’s Guide

Model: P2421

Regulatory model: P2421b

Contents

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Using the Quick Settings Dialog . . . . . . . . . . . . . . . 5

Setting Basic Display Functions . . . . . . . . . . . . . . . . 6

Assigning Preset Modes to Applications . . . . . . . . . 7

Organizing Windows with Easy Arrange . . . . . . . . . . 8

Managing Multiple Video Inputs. . . . . . . . . . . . . . . 10

Restoring Application Positions . . . . . . . . . . . . . . . 12

Attaching DDM to active windows (only Windows 10)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Applying Energy Conservation Features . . . . . . . . 14

Other Shortcut Keys . . . . . . . . . . . . . . . . . . . . . . . . 14

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

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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 select 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.

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Oꢀ verview

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 monitors are 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.

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.

Overview

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NOTE:

Feature

Function

Description

Quick DDM

Access

Quick key to

call up DDM UI

• Ctrl+Shift+D

• Use Page Up/Page Down key or click on “>” to

flip through all Easy Arrange layouts.

Control

• From dropdown box to select monitor, selected

monitor has Dell logo shown.

• Perform monitor self-test feature check.

individual

monitor in

multiple

• Move DDM UI to the monitor to be controlled.

monitor setup

• Press Ctrl+Shift+D to bring up the miniUI under

the mouse pointer.

Setting Basic Display Functions

Select Manual Mode that enables you to manually select a preset mode or select

Auto Mode that applies a preset mode based on the active application. An on-

screen 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.

NOTE: When multiple Dell monitors are connected, select “Enable

display matrix control” to apply brightness, contrast and color presets

controls to all monitors.

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Sꢀ etting Basic Display Functions

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.

NOTE: Preset Mode assignments for batch files, scripts, loaders, and

non-executable files such as zip archives or packed files, are not

supported.

You can also configure the Game preset mode to be used whenever a Direct3D

application runs in full-screen mode. To prevent an application from using mode,

assign a different preset mode to it.

Assigning Preset Modes to Applications

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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 which suits your work, then

you just need to drag the application windows into the defined zones. Press “>” or

use 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.

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Oꢀ rganizing Windows with Easy Arrange

For Windows 10, you can apply different window layouts for each of the virtual

desktops.

If you often use 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 press the Shift key to use Easy Arrange

positioning.

If you are using multiple monitors in an array or matrix, Easy Arrange layout can be

applied across to all the monitors as one desktop. Select “Span multiple

monitors” to enable this feature. You need to align your monitors properly to make

it effective.

Organizing Windows with Easy Arrange

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

below.

Feature

Function

Description

Enhanced Easy Custom layouts

Arrange

• Save and name 5 customized Easy

Arrange patterns.

• Configure x*y patterns.

5 MRU (most-

recently-

• Press Ctrl+Shift+Home to cycle among the

last 5 MRU layouts.

used) layouts

On the fly

partition resizing

• Hold down Ctrl while resizing 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 default layout.

Easy Arrange

layouts for

• Portrait mode Easy Arrange icons are

presented when monitor is rotated.

portrait mode

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.

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Mꢀ anaging Multiple Video Inputs

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

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.

Managing Multiple Video Inputs

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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 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 “Save current window layout” and later

“Restore saved window layout”.

You may use monitors with different models or resolutions in your daily routine, and

apply different window layouts on 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.

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Mꢀ anaging Multiple Video Inputs

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.

Managing Multiple Video Inputs

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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 5 recently used

window layouts.

• Application window shortcut key: to launch a quick menu for options under

Auto Mode and Easy Arrange.

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Oꢀ ther Shortcut Keys

Troubleshooting

If DDM cannot work with your monitor, DDM will show below icon in your

notification tray.

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

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 below 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.). 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

device if the latest version is available.

5. Restart your system.

Other Shortcut Keys

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DDM may not work with below monitors:

• Dell monitor models earlier than 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 DDM application is available. It is recommended to download and

install the latest DDM application.

You may also check for new version by right clicking on DDM icon while pressing

and holding 'shift' key.

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Oꢀ ther Shortcut Keys

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