https://bugzilla.kernel.org/show_bug.cgi?id=203905
--- Comment #28 from Antony J.R (antonyjr000@gmail.com) --- (In reply to Paulo Nascimento from comment #26)
laptop: Lenovo Legion 5, amd ryzen 5 4600h Graphics: Device-1: NVIDIA TU116M [GeForce GTX 1660 Ti Mobile] driver: nouveau Device-2: Advanced Micro Devices [AMD/ATI] Renoir driver: amdgpu Kernel 5.11.6-1 Manjaro 21.1
I have tried all suggested workarounds:
systemctl start systemd-backlight@backlight:amdgpu_bl0
mkinitcpio with MODULES=(amdgpu)
acpi_backlight=vendor
acpi_backlight=video
/usr/lib/systemd/systemd-backlight save backlight:amdgpu_bl0 /usr/lib/systemd/systemd-backlight load backlight:amdgpu_bl0
Even echo 10 >/sys/class/backlight/amdgpu_bl0/brightness doesn't change the brightness.
Any suggestions?
Please read the entire thread here -> https://bugzilla.opensuse.org/show_bug.cgi?id=1180749