Dell S2421H Manuel utilisateur
Model: S2421H/S2721H
Regulatory model: S2421Ht/S2721Ht
Dell S2421H/S2721H
Dell Display Manager
User’s Guide
NOTE: A NOTE indicates important information that helps you make better use of
your computer.
Copyright © 2020 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.
2020 – 07
Rev. X00
| Contents3
Contents
Overview .........................................4
Using the Quick Settings Dialog........................5
Setting Basic Display Functions ........................7
Assigning Preset Modes to Applications .................9
Organizing Windows with Easy Arrange................. 11
Managing Multiple Video Inputs.......................15
Restoring Application Positions .......................17
Applying Energy Conservation Features ................18
Other Shortcut Keys ...............................19
Attach DDM To Active Window (Only Windows 10) ........20
Troubleshooting ...................................21
4| Overview
Overview
Dell Display Manager is a Microsoft Windows application used to manage a display or a group of
displays. It enables manual adjustment of the displayed image, assignment of automatic settings,
energy management, window organization, image rotation, and other features on selected Dell
displays. After installed, Dell Display Manager runs each time the system starts and places its
icon in the notication tray. Information about displays connected to the system is available when
hovering over the notication-tray icon.
Dell S2421H - Standard
S2421H
Dell S2721H - Standard
S2721H
NOTE: Dell Display Manager uses DDC/CI channel to communicate with your
display. Ensure that DDC/CI is enabled in the menu as below.
Dell 24/27 Monitor
Input Source
Color
Personalize
Display
Menu
Others
Brightness/Contrast
O
On
LCD Conditioning
DDC/CI
Firmware
Reset Others
Factory Reset
Display Info
Service Tag
Using the Quick Settings Dialog | 5
Using the Quick Settings Dialog
Clicking Dell Display Manager’s notication tray icon to open the Quick Settings dialog box.
When more than one supported Dell displays are connected to the computer, a specic target
display can be selected using the menu. The Quick Settings dialog box enables convenient
adjustment of the display’s brightness, contrast, resolution, window layout, and so on. You can
select Manual Mode or Auto Mode, and the screen resolution can be changed.
Dell S2421H
S2421H
6| Using the Quick Settings Dialog
Dell S2721H
S2721H
The Quick Settings dialog box also provides access to Dell Display Manager’s advanced user
interface that is used to adjust basic functions, congure auto mode and access other features.
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 ip
through all Easy Arrange layouts.
Control
individual
display in
multiple
display setup
• From dropdown box to select display, selected display
has Dell logo shown.
• Perform display self-test feature check.
• Move DDM UI to the display to be controlled.
• Press Ctrl+Shift+D to bring up the miniUI under the
mouse pointer.
Setting Basic Display Functions | 7
Setting Basic Display Functions
You can 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 display’s Brightness and
Contrast can also be directly adjusted from the Basic tab.
Dell S2421H
S2421H
Dell S2721H
S2721H
NOTE: When multiple Dell displays are connected, select “Enable display matrix
control” to apply brightness, contrast and color presets controls to all displays.
8| Setting Basic Display Functions
Dell S2421H
S2421H
Dell S2721H
S2721H
Assigning Preset Modes to Applications | 9
Assigning Preset Modes to Applications
The Auto Mode tab allows you to associate a specic Preset Mode with a specic 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
display, or it can vary from one display to another.
Dell Display Manager is pre-congured 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 congure 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 dierent preset mode to
it.
Dell S2421H
S2421H
10 | Assigning Preset Modes to Applications
Dell S2721H
S2721H
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