Arch Linux

ReD55

Member

Registered: 2022-07-14

Posts: 7

Backlight resolution update

The current update of linux-firmware-amdgpu (20250627-1),
updated my /sys/class/backlight/amdgpu_bl1/max_brightness
from 8 bit (255 max) to 16 bit (65535 max) and thus broke my current setup.
So if your backlight is not working as expected right now, this is likely why.