On Friday, August 22, 2025 11:44:34 AM Mountain Standard Time Mohit Behera
wrote:
> Sorry for the late reply.
> The brightness slider didn't work in any case, neither from the system tray,
> nor from the settings panel in both wayland and X11 sessions
It works on my system with a Ryzen 5 5500U with integrated Radeon Graphics.
Perhaps the issue you are having is specific to the 780M?
I have a AMD Ryzen 7 with 780M Graphics and everything works fine. The F4 and F5 keys dim and brighten the screen. I can also adjust the brightness via the Brightness and Color system tray widget. I am running Debian 13. If I recall correctly Debian 12 had some issues. I have the firmware-amd-graphics driver installed.
Out of curiosity, do you have the firmware-amd-graphics package installed?
--
Soren Stoutner
soren@debian.org