Turn Monitor Don't Enable Screen Blanking on Arch Linux

Abstract: X11/lightdm crashes when pressing the monitor's power button. Instead, running xset dpms force puts the monitor in low-power mode, which is a workaround.

Created: 2025-02-02 by UserComp.com Editors

X11/lightdm crashes pressing monitor power button

Background

X11/lightdm crashes when pressing the monitor power button. Instead, running xset dpms force puts the monitor in low-power mode, which works as a workaround.

Reason

The reason for this issue is not explicitly known. However, running the xset dpms force command puts the monitor in a low-power mode, which prevents the crash.

Workaround

To work around this issue, you can add the following line to your startup scripts or run it manually:

        
        xset dpms force off

This command will put the monitor in a low-power mode when you are not actively using it, which should prevent the crash.

References

Book: X Programming for Linux and the X Window System
Article: How to use xset to manage your X display's power consumption
Online Resource: Arch Linux Wiki: X - Suspend and power management

Tags: Linux

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