Bug 485458

Summary:	Display configuration resets after waking up laptop from suspend
Product:	[Plasma] KScreen	Reporter:	ChronosXYZ <chronosxyz000>
Component:	common	Assignee:	kscreen-bugs-null <kscreen-bugs-null>
Status:	RESOLVED WORKSFORME
Severity:	major	CC:	nate, xaver.hugl
Priority:	NOR	Keywords:	multiscreen
Version First Reported In:	6.0.4
Target Milestone:	---
Platform:	openSUSE
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description ChronosXYZ 2024-04-12 21:09:59 UTC

SUMMARY
I have a problem where my display configuration resets after I wake up my laptop from the sleep. I have setup of laptop with external screen. My laptop has Optimus configuration (Intel/Nvidia). I use package called 'suse-prime' which helps to set Nvidia as my primary GPU and turn off Intel GPU completely. I use X11. Display configuration resets in a way where a) my screens overlay each other (so I have to move one display to the left of another in settings again and again); b) i have one working (external) screen with no panels on it and laptop screen is turned off (there is no 'primary' checkbox in settings anymore and laptop screen is turned off in settings as well). This happens constantly after suspend and I am setting right configuration again and again.
This began to appear after I upgraded to Plasma 6.
Also I've turned off Kwin compositor and use picom for it because of lags and critical bugs which still are not fixed unfortunately. This bug still reproduces in default Kwin configuration, so I don't think it is somehow related to picom.

STEPS TO REPRODUCE
1. Plug in external screen to the laptop
2. Close the lid
3. Wait till laptop will go to the sleep
4. Open the lid

OBSERVED RESULT

Display configuration resets.

EXPECTED RESULT

Display configuration should stay the same.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma:
KDE Plasma Version: 6.0.3
KDE Frameworks Version: 6.0.0
Qt Version: 6.7.0
OS: openSUSE Tumbleweed 20240410

ADDITIONAL INFORMATION
X11, picom+kwin, nvidia optimus

Comment 1 ChronosXYZ 2024-04-30 13:48:27 UTC

I can record the video if the description is not very clean. Pretty annoying and it hasn't been fixed in 6.0.4 release.

Comment 2 Zamundaaa 2024-05-22 14:25:09 UTC

Does this also happen if you disable the KScreen2 background service in system settings?

Comment 3 Bug Janitor Service 2024-06-06 03:45:54 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 4 Bug Janitor Service 2024-06-21 03:47:27 UTC

This bug has been in NEEDSINFO status with no change for at least
30 days. The bug is now 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

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