Dell U3821DW Display Manager User Guide

This user guide explains how to use Dell Display Manager (DDM) software on the Dell U3821DW monitor for image adjustment, window management, and energy saving.


Dell U3821DW Display Manager User Guide - cover page
Brand
DELL
Category
Other Computer Accessories
Document type
User Manual
Language
Chinese
Pages
18
File format
PDF
File size
2.8 MB
Published
16 October, 2026
Updated
16 October, 2026
MD5 checksum
B19D536497F55DF591F24EF7C8323A72

About this manual

The Dell Display Manager (DDM) is a Microsoft Windows application designed to manage one or multiple Dell monitors. It allows users to manually adjust display images, assign automatic settings based on active applications, manage windows using Easy Arrange layouts, and control power-saving features like PowerNap.

Key functions include the Quick Settings dialog for adjusting brightness, contrast, and resolution; assigning preset modes to specific applications in Auto Mode; organizing desktops with predefined or custom Easy Arrange layouts; managing multiple video input signals via Input Manager; and connecting DDM directly to active Windows 10 windows. This manual is written in Chinese.

What's inside

  • Overview
  • Quick Settings Dialog
  • Basic Display Functions
  • Assigning Preset Modes to Applications
  • Easy Arrange Window Organization
  • Managing Multiple Video Inputs
  • Connecting DDM to Active Windows 10
  • PowerNap Energy Saving Features
  • Troubleshooting

Frequently asked questions

What is Dell Display Manager (DDM)?

Dell Display Manager is a Microsoft Windows application used to manage one or multiple Dell monitors, allowing for manual image adjustment and automatic settings.

How do I adjust brightness and contrast?

You can use the Quick Settings dialog to easily adjust brightness, contrast, resolution, and window layout.

Can I assign display modes to specific applications?

Yes, in Auto Mode you can link a specific Preset Mode to a specific application so the setting applies automatically when that app is opened.

Does DDM support non-Dell monitors?

No, DDM only works with Dell brand monitors. If you use a monitor from another manufacturer, it is not supported.

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