Bug 490916 - Monitor does not turn back on after inactivity
Summary: Monitor does not turn back on after inactivity
Status: NEEDSINFO WAITINGFORINFO
Alias: None
Product: kwin
Classification: Plasma
Component: general (other bugs)
Version First Reported In: 6.1.3
Platform: Fedora RPMs Linux
: NOR normal
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2024-07-28 10:39 UTC by me
Modified: 2025-10-14 12:43 UTC (History)
5 users (show)

See Also:
Latest Commit:
Version Fixed/Implemented In:
Sentry Crash Report:

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Description me 2024-07-28 10:39:13 UTC 
***
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If you're reporting a crash, attach a backtrace with debug symbols; see https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports
***

When the monitor turns off due to inactivity, it fails to reactivate after mouse movement or keyboard input. Manually turning on the monitor using its power button results in a "no signal detected via HDMI" error. The only solution is to force a system shutdown by holding the power button and then restarting the computer. My graphics card is an AMD RX 6500 XT.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Fedora 40 KDE Plasma
KDE Plasma Version: 6.1.3
KDE Frameworks Version: 6.4.0
Qt Version: 6.7.2
Wayland
Comment 1 sparkie 2025-08-02 23:11:37 UTC 
So I'm having this issue as well and have been for a while. Once the monitors power off due to inactivity, I cannot wake them. I'll work on getting some debug info from the guides.
Comment 2 Zamundaaa 2025-10-14 12:43:21 UTC 
Sorry we didn't get to this issue yet.

Please attach the output of drm_info when the monitor isn't receiving any signal. You can get the output (and shut down the computer more nicely) with ssh from another device (for example your phone).