Bug 495246 - When changing screen brightness, the desktop wallpaper shines through shortly in random regions
Summary: When changing screen brightness, the desktop wallpaper shines through shortly...
Status: RESOLVED DUPLICATE of bug 480799
Alias: None
Product: kwin
Classification: Plasma
Component: platform-drm (show other bugs)
Version: 6.2.1
Platform: openSUSE Linux
: NOR normal
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2024-10-23 15:37 UTC by postix
Modified: 2024-10-24 15:07 UTC (History)
1 user (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:

Attachments
Picture showing the issue (883.84 KB, image/jpeg)
2024-10-23 15:37 UTC, postix 		Details
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Description postix 2024-10-23 15:37:11 UTC 
Created attachment 175148 [details]
Picture showing the issue

STEPS TO REPRODUCE
1. Open the Brightness and Color applet
2. Move the slider for the screen brightness back and forth

OBSERVED RESULT

While adjusting the brightness, screen flickers and at random regions, parts of the desktop wallpaper shine through for fraction of a second.

It's not record-able with pipewire, so I've recorded it with my phone and took a screenshot from the video.

It also seems the actual monitor backlight isn't changed as the brightness setting of the monitor doesn't change, but instead a purely visual darkening overlay effect is in charge.


SOFTWARE/OS VERSIONS
Operating System: openSUSE Tumbleweed 20241021
KDE Plasma Version: 6.2.1
KDE Frameworks Version: 6.7.0
Qt Version: 6.8.0
Kernel Version: 6.11.3-2-default (64-bit)
Graphics Platform: Wayland
Graphics Processor: AMD Radeon RX 580 Series
Comment 1 Zamundaaa 2024-10-24 14:58:59 UTC 
hmm, this looks a lot like there's some synchronization issue with KMS, just like bug 480799
Comment 2 Zamundaaa 2024-10-24 15:07:51 UTC 

*** This bug has been marked as a duplicate of bug 480799 ***