SUMMARY Currently pressing keyboard shortcuts changes the brightness level for for all displays available in the system simultaneously. It may not be a good idea since every display's brightness range is different, causing the perceived brightness to be different after pressing the shortcuts STEPS TO REPRODUCE 1. Use multiple displays 2. Adjust brightness via keyboard shortcuts OBSERVED RESULT The brightness level is changed for all displays in the system causing the perceived brightness level to be different for each display EXPECTED RESULT I don't know which option would be better from UX point of view, here are my proposals: - Ability to choose which display's brightness is controlled: the active screen (the screen that was the last one to receive user input), both screens, only one screen (picked by the user) - Somehow equalize the perceived brightness level of all displays (maybe it's possible with the reported HW capabilities and/or using the provided ICC profiles) SOFTWARE/OS VERSIONS Operating System: NixOS 24.11 KDE Plasma Version: 6.1.90 (built from https://github.com/NixOS/nixpkgs/pull/341487) KDE Frameworks Version: 6.5.0 Qt Version: 6.7.2 Kernel Version: 6.10.9-zen1 (64-bit) Graphics Platform: Wayland Processors: 16 × AMD Ryzen 7 5800H with Radeon Graphics Memory: 23.3 GiB of RAM Graphics Processor: NVIDIA GeForce RTX 3050 Ti Laptop GPU/PCIe/SSE2 ADDITIONAL INFORMATION qdbus org.kde.Solid.PowerManagement /org/kde/ScreenBrightness/display0 org.kde.ScreenBrightness.Display.IsInternal true qdbus org.kde.Solid.PowerManagement /org/kde/ScreenBrightness/display0 org.kde.ScreenBrightness.Display.MaxBrightness 10000 qdbus org.kde.Solid.PowerManagement /org/kde/ScreenBrightness/display1 org.kde.ScreenBrightness.Display.IsInternal false qdbus org.kde.Solid.PowerManagement /org/kde/ScreenBrightness/display1 org.kde.ScreenBrightness.Display.MaxBrightness 10000
Relative brightness differences can be harmonized by changing the brighter display's brightness to match that of the dimmer one. Thereafter, invoking the global brightness actions will preserve the gap in their brightnesses when brightening or dimming them. I'm not sure if what you propose would be an improvement over this; it seems like it would add more complexity and introduce the potential for confusion and bugs. What do you think, Jakob?
No response; assuming no interest in doing this, so marking it as RESOLVED INTENTIONAL.