Created attachment 166831 [details] Video of the issue SUMMARY *** NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols. See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports *** STEPS TO REPRODUCE 1. Try to change brightness in the System Tray 2. Then try to change brightness with FN keys OBSERVED RESULT Sometimes, if you increase brightness to 100% it might just jump back to let's say 80% or 70%. Or if you try to lower the brightness 0%, it might reduce gradually, like it's reducing brightness at 15 frames per second. But changing brightness with FN works perfectly. EXPECTED RESULT Brightness changes to what I desire, quickly and percentage not to jump around. SOFTWARE/OS VERSIONS Linux/KDE Plasma: EndeavourOS with Linux 6.7.9-arch1-1 (available in About System) KDE Plasma Version: 6.0.1 KDE Frameworks Version: 6.0.0 Qt Version: 6.6.2 ADDITIONAL INFORMATION I don't think this is an issue with Plasma 6, because I remember I had something similar on Plasma 5 on EndeavourOS and Nobara with KDE. But only now did I decide to try and report this, because I haven't found a solution. I'll include a short video how it looks.
Can reproduce.
Should be fixed in 6.1 with the ported dataengine
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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!
(In reply to Fushan Wen from comment #2) > Should be fixed in 6.1 with the ported dataengine I haven't encountered this since the dataengine port went into 6.1. Also there's the extra fixes from Bug 470106, the latest of which went into Plasma 6.1.1. The brightness slider now seems snappy and not jumpy, so I think it's reasonable to mark this as fixed. Let us know if you still encounter any related issues.