Bug 454626

Summary:	screen turns on again when switching to hibernation
Product:	[Plasma] kwin	Reporter:	Tobias G. <kde-bugzilla.oink169>
Component:	wayland-generic	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED UPSTREAM
Severity:	normal	CC:	nate, xaver.hugl
Priority:	NOR
Version First Reported In:	5.24.4
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Tobias G. 2022-05-30 23:06:37 UTC

SUMMARY
Hey guys,
whenever I put my PC in hibernation, the screen turns off for a few seconds, then turns on  again with just the lock screen clock and mouse cursor visible to then turn off again and actually go into hibernation.
The screen shouldn't turn on again though, but should stay turned off.
This might not be a wayland-specific bug.


STEPS TO REPRODUCE
1.  start wayland session
2.  start hibernation mode
3. observe screen

OBSERVED RESULT
screen turns on again for a short time

EXPECTED RESULT
screen stays turned off

SOFTWARE/OS VERSIONS
Operating System: Manjaro Linux
KDE Plasma Version: 5.24.5
KDE Frameworks Version: 5.94.0
Qt Version: 5.15.4
Kernel Version: 5.17.9-1-MANJARO (64-bit)
Graphics Platform: Wayland
Processors: 6 × AMD Ryzen 5 4500U with Radeon Graphics
Memory: 7.2 GiB of RAM
Graphics Processor: AMD RENOIR

ADDITIONAL INFORMATION

Comment 1 Zamundaaa 2022-06-02 17:08:54 UTC

Thanks for the bug report, I can observe the same problem - both on Wayland and Xorg. As this is most likely a bug in the kernel, I opened an issue with amd: https://gitlab.freedesktop.org/drm/amd/-/issues/2038
Please add your information there. Thanks!