https://bugs.kde.org/show_bug.cgi?id=494577
--- Comment #12 from hossains...@proton.me --- (In reply to Jakob Petsovits from comment #10) > That's a lot of confirmations. I wonder if you are all hitting the same > issue, or if they are slightly different. > > The original bug report mentions that the brightness slider doesn't work as > expected anymore, "the monitor doesn't brighten beyond the dimmed value". > This would happen if hardware brightness controls are lost and KWin on > Wayland uses software brightness instead. There was a change that went into > Plasma 6.2.3, which will make sure that the slider disappears instead of now > confusingly controlling software brightness: > https://invent.kde.org/plasma/kwin/-/merge_requests/6670. But this does not > fix the underlying issue that Plasma gave up on hardware brightness controls. > > There was another change that went into 6.2.1, which will retry any monitor > commands several times (spaced out over a few seconds) before giving up on > hardware brightness: > https://invent.kde.org/plasma/powerdevil/-/merge_requests/441 plus a small > addition for completeness, > https://invent.kde.org/plasma/powerdevil/-/merge_requests/445. > > The initial bug report was reported against Plasma 6.2.0 - could I ask for > confirmation from the OP (hossains...@proton.me) to report if this is still > failing for you? > > Other comments are mentioning that non-dimmed brightness needs to be > restored by adjusting the slider in the brightness applet. This indicates > that hardware brightness controls are generally working, so the root cause > would be different from the originally reported issue. I improved the > dimming code somewhat in Plasma 6.2.1 by restoring brightness values for > each display individually: > https://invent.kde.org/plasma/powerdevil/-/merge_requests/433. However, this > isn't yet good enough if a dimmed monitor was unplugged and only comes back > later. We need to further improve robustness for un-dimming monitors. Also > see: https://invent.kde.org/plasma/powerdevil/-/issues/38 Hi, after upgrading to Fedora 41, the issue has been resolved for me. The monitor brightness now behaves correctly after waking up. Current software versions: KDE Plasma Version: 6.2.3 KDE Frameworks Version: 6.8.0 Qt Version: 6.8.0 Kernel Version: 6.11.7-300.fc41.x86_64 (64-bit) Graphics Platform: Wayland Thank you for the updates and improvements! -- You are receiving this mail because: You are watching all bug changes.
