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
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
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
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
