Bug 358574 - Monitor starts flickering occasionally until I do *any* change to the compositor settings
Summary: Monitor starts flickering occasionally until I do *any* change to the composi...
Status: RESOLVED WORKSFORME
Alias: None
Product: kwin
Classification: Plasma
Component: general (show other bugs)
Version: 5.5.3
Platform: Kubuntu Linux
: NOR normal
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords: triaged
Depends on:
Blocks:
 
Reported: 2016-01-26 09:23 UTC by Bjarke
Modified: 2018-10-28 03:25 UTC (History)
1 user (show)

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Description Bjarke 2016-01-26 09:23:29 UTC
I'm using the Cube setup for multiple workspaces (3x3) in Kubuntu. After a few days, my monitor started flickering, especially (but not only) when changing between workspaces. I Googled that I should select 'full screen repaints' under 'vsync' in the compositor settings. This momentarily solved the problem, but it returned a couple of days later. The problem goes a few for a few days when I perform seemingly any change in the compositor settings and click 'apply' - even if I, say, select a different setting for vsync, select the original one again, and only THEN click 'apply', so it seems something magical is happening when the apply button is pressed.
Feel free to contact me with any questions.

Reproducible: Sometimes

Steps to Reproduce:
1. Enable multiple workspaces (3x3) with cube animation.
2. Change compositor settings
3. Reboot a few times (there doesn't seem to be a pattern)

Actual Results:  
Monitor flickers wildly until compositor settings are changed again.

Expected Results:  
Monitor would stop flickering permanently after selecting 'full screen repaints' for vsync settings.
Comment 1 Martin Flöser 2017-02-06 18:45:17 UTC
Please provide the output of:
qdbus org.kde.KWin /KWin supportInformation
Comment 2 Andrew Crouthamel 2018-09-28 02:33:38 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 set the bug status 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 3 Andrew Crouthamel 2018-10-28 03:25:55 UTC
Dear Bug Submitter,

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!