Bug 515899 - Buttons of the spinbox used to adjust the screen brightness not always work when I open System Settings and then go to Display Configuration KCM
Summary: Buttons of the spinbox used to adjust the screen brightness not always work w...
Status: CONFIRMED
Alias: None
Product: systemsettings
Classification: Applications
Component: kcm_kscreen (other bugs)
Version First Reported In: 6.5.91
Platform: Arch Linux Linux
: NOR normal
Target Milestone: ---
Assignee: kscreen-bugs-null@kde.org
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2026-02-12 10:05 UTC by Patrick Silva
Modified: 2026-02-12 10:13 UTC (History)
2 users (show)

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

Attachments
screen recording (2.60 MB, video/webm)
2026-02-12 10:05 UTC, Patrick Silva 		Details
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Description Patrick Silva 2026-02-12 10:05:25 UTC 
Created attachment 189484 [details]
screen recording

SUMMARY
As we can observe in the attached screen recording, if I open System Settings and then go to Display Configuration KCM, the buttons of the spinbox used to adjust the screen brightness sometimes work, sometimes them do not. The said buttons always work if I open the KCM via context menu of desktop.

EXPECTED RESULT
the buttons of the spinbox always work

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 6.5.91
KDE Frameworks Version: 6.22.0
Qt Version: 6.11.0
Graphics Platform: Wayland
Comment 1 Tobias Fella 2026-02-12 10:13:23 UTC 
Can reproduce as well. Looks like it's ultimately the same as https://bugs.kde.org/show_bug.cgi?id=515898