Bug 507968

Summary: HDR gets applied incorrect when physically turning on the monitor after a long time
Product: [Plasma] kwin Reporter: pollux/ned <pollux66>
Component: generalAssignee: KWin default assignee <kwin-bugs-null>
Status: RESOLVED UPSTREAM    
Severity: normal CC: xaver.hugl
Priority: NOR    
Version First Reported In: 6.4.4   
Target Milestone: ---   
Platform: CachyOS   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:
Attachments: picture of the color being incorrect when waking it today
when reapplying hdr it gets applied correctly

Description pollux/ned 2025-08-07 07:12:38 UTC
Created attachment 183849 [details]
picture of the color being incorrect when waking it today

SUMMARY
I kept HDR activated on my monitor, turned off all 3 of my monitors for 12 hours, came back to turn them all on and the colors of my main monitor were applied incorrectly that has HDR turned on.

STEPS TO REPRODUCE
1. Turn HDR on
2. Turn the monitor off physically and wait a while as i cant replicate it 
3. Turn it back on and maybe just maybe HDR or color profile will be applied not correctly

OBSERVED RESULT
Color looks wrong

EXPECTED RESULT
Color should be what is was before i turned it off

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Cachyos, AMD RX 6700 10GB
KDE Plasma Version: 6.4.4
KDE Frameworks Version: 6.16.0
Qt Version: 6.9.1

ADDITIONAL INFORMATION
Comment 1 pollux/ned 2025-08-07 07:13:22 UTC
Created attachment 183850 [details]
when reapplying hdr it gets applied correctly
Comment 2 Zamundaaa 2025-08-07 12:26:56 UTC
This is a driver bug, please see https://gitlab.freedesktop.org/drm/amd/-/issues/4444#note_3032557