Bug 488162

Summary:	Screen freezes after screen locking
Product:	[Plasma] kscreenlocker	Reporter:	bugreport.outscore586
Component:	general	Assignee:	Plasma Bugs List <plasma-bugs>
Status:	RESOLVED WORKSFORME
Severity:	grave	CC:	jpetso, nate, vlad.zahorodnii, xaver.hugl
Priority:	NOR	Keywords:	regression
Version:	git-stable-Plasma/6.1
Target Milestone:	---
Platform:	Fedora RPMs
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description bugreport.outscore586 2024-06-07 14:20:31 UTC

SUMMARY
When having a multi-monitor setup and let the screens automatically lock and switch themselves off - as set up in Screen Locking settings - the non-primary display will always freeze or will simply not turn on again.

STEPS TO REPRODUCE
1. Set up automatic Screen Locking in KDE settings 
2. Wait for the displays to turn off
3. Wake the system

OBSERVED RESULT
One screen (secondary in this case) freezes or is unable to turn on again.

EXPECTED RESULT
All screens should work the same as before screen locking

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version:  6.0.5
KDE Frameworks Version: 6.2.0
Qt Version: 6.7.1

ADDITIONAL INFORMATION
Graphics Platform: Wayland
GPU: Nvidia RTX 4070 Ti
Graphics driver: Nvidia proprietary 550.78

Comment 1 Nate Graham 2024-06-14 03:46:07 UTC

NVIDIA driver issue, maybe?

Comment 2 bugreport.outscore586 2024-06-15 08:27:02 UTC

Update:

as it turns out, it has something to do with KDEs energy saving screen dim/turn off setting, not the screen lock itself.

(In reply to bugreport.outscore586 from comment #0)

Comment 3 Zamundaaa 2024-07-10 17:28:03 UTC

Please attach the output of drm_info, once for when the output is working correctly, and once when it doesn't turn on again. The output of
> journalctl --user-unit plasma-kwin_wayland --boot 0
after triggering the problem would also be useful

Comment 4 Bug Janitor Service 2024-07-25 03:46:13 UTC

Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!

Comment 5 Bug Janitor Service 2024-08-09 03:46:42 UTC

🐛🧹 This bug has been in NEEDSINFO status with no change for at least 30 days. Closing as RESOLVED WORKSFORME.