Now, it works for me (ubuntu 20.04.3) with the kernel (v5.11.0.34.36)
parameter
nvidia.NVreg_RegistryDwords=EnableBrightnessControl=1
And nvidia drivers 460.91.03. No need to do anything else.
The parameter is mentioned in arch wiki
https://wiki.archlinux.org/title/NVIDIA#Enabling_brightness_co
To add more info on what I tried, I have put it here:
https://askubuntu.com/questions/1329928/legion-5-pro-brightness-control-
doesnt-work-on-ubuntu-20-04-with-nvidia-driver . Surprisingly the
brightness also works on Manjaro (as mentioned in my post) after adding
'Option "RegistryDwords" "EnableBr
It (link above) didn't work for me, even with Kernel 5.10 and 5.11.
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https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
To manage n
Same problem with Legion 5 pro, 5800H+3070. Tried config
https://www.reddit.com/r/GamingLaptops/comments/ls9k5r/legion_5_pro_other_info_64gb_ram_upgrade_linux/
This guy claims that after 'upgrading to Kernel 5.10', 'Blacklisting
noveau drivers', 'changing the .conf file' and 'adding modules in
in
