SUMMARY scrolling on applet/pressing brightness keys should adjust the brightness level of current/active display, instead of adjusting the brightness of all displays simultaneously. STEPS TO REPRODUCE 1. In multi monitor setup, press brightness keys OBSERVED RESULT Brightness of all monitors change simultaneously EXPECTED RESULT Brightness of only active monitor changes STEPS TO REPRODUCE 1. In multi monitor setup, scroll on brightness applet OBSERVED RESULT Brightness of all monitors change simultaneously EXPECTED RESULT Brightness of only the monitor with the applet changes ADDITIONAL INFORMATION In a multimonitor setup, it should be pretty rare that a user wants to change the brightness of all displays simultaneously. The more common need is to change the brightness of a particular display. Currently this is inconvenient, as the user needs to go to applet, and adjust the slider for that particular display. See also thread here: https://invent.kde.org/plasma/powerdevil/-/merge_requests/361#note_982173
What the default should be is worth considering Personally, I usually want to just change brightness on my laptop display, not the external monitors. So I would also prefer the default to be that the laptop keys only adjust the laptop display
(In reply to TraceyC from comment #1) > What the default should be is worth considering > Personally, I usually want to just change brightness on my laptop display, > not the external monitors. So I would also prefer the default to be that the > laptop keys only adjust the laptop display I don't know if currently we have the infrastructure to distinguish between laptop keys and external keyboard keys..
Instead of using the keyboard to determine the active display, can we use the code that determines active display / active window to get the focused display?
A possibly relevant merge request was started @ https://invent.kde.org/plasma/powerdevil/-/merge_requests/527