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 2. Will not work 3. OBSERVED RESULT PP will not change when trying to from widget EXPECTED RESULT It does change when trying to SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: Kubuntu 23.10 (available in About System) KDE Plasma Version: 5.27.8 KDE Frameworks Version: 5.110.0 Qt Version: 5.15.10 ADDITIONAL INFORMATION
Probably some Kubuntu specific issue. On Debian 12 (with the testing repository) it works without problems. On KDE Neon (with Plasma 6 RC1) it also works, but there is a weird highlight happening at the top of the systray when the power profile slider is moved.
Unfortunately in general when this happens it's a firmware issue. See the discussion in https://gitlab.freedesktop.org/hadess/power-profiles-daemon/-/issues/106.
*** Bug 481995 has been marked as a duplicate of this bug. ***
As I mentioned in my closed duplicate I also ran in to this bug. This worked correctly on Arch before moving to Kubuntu, so I strongly doubt it is a firmware bug. Where can I report this to the distro maintainers?