https://bugs.kde.org/show_bug.cgi?id=505558
--- Comment #2 from Henrique Sant'Anna <hsanta...@gmail.com> --- You can reproduce scenario 2 on intel by setting the brightness to 25% on comand line (requires root): # echo $(( $(cat /sys/class/backlight/intel_backlight/max_brightness) / 4 )) | sudo tee /sys/class/backlight/intel_backlight/brightness (I imagine that for other manufacturers it must be a very similar command) After that, press the increase brightness shortcut (Fn+F6, here), and brightness will not increase. So you can try to decrease brightness (Alt+F5, here) and it will actually increase from 25% to 90%. Scenario 1 and 2 are the same bug because both have the same cause. They are only distinguished by the severity with which they affect the user. In scenario 1, it affects a lack of information (OSD), in scenario 2, which is more serious, it affects broken functionality (brightness don't increase where it should). -- You are receiving this mail because: You are watching all bug changes.