Hello everyone, Today I saw a message suggesting to update to 5.10 kernel, and I happily did it, but now I cannot adjust my laptop’s screen backlight. On Linux 5.9, I adjust the backlight by writing to the file /sys/class/backlight/nvidia_0/brightness, and if I look at the nvidia_0 directory, it’s…

[image] farzadm: I’m not sure what the warning is about, but on 5.9, I also get the warning That means there is something wrong with your driver install, it might be related… Try to fully uninstall the driver using mhwd and then re-install it. PS: I added the kernel tag so it will be better…

[image] TriMoon: Try to fully uninstall the driver using mhwd and then re-install it Thank you @TriMoon , I’ll give that a shot [image] TriMoon: PS: I added the kernel tag so it will be better spotted by people watching that tag only… thank you :slightly_smiling_face:

[image] TriMoon: Try to fully uninstall the driver using mhwd and then re-install it. I tried that, and it didn’t work I guess nobody knows how to solve this problem :slightly_frowning_face:

Give it time, maybe in near future someone with enough knowledge will notice this topic :wink: We can know a lot,but not everything, and no-one is online on the forum 24/7 that knows how to solve every problem :wink:

Totally agree @TriMoon , but from past experience, if I don’t get an answer in the first 1 or 2 days, I won’t get it ever! I really hope what you said happens because it’s basically blocking me from going to 5.10 :disappointed:

I just remembered a topic relating to backlight that you might want to check out: [image] Xrandr increase brightness in incraments Support Hi, I recently installed manjaro with awesome wm, and it has worked great, apart from the brightness and volume keys. I did a lazy fix…

I have the same issue on a Dell XPS 15 with OLED screen. Brightness is adjustable on 5.9 (I believe because of some patches that were cherrypicked in the Manjaro kernel), but it broke in 5.10.

@janlugt there are new patches available as of 2020-12-04. @nightmare-2021 @philm maybe you could incorporate those into the Manjaro kernel builds if you deem them appropriate?

The patches doesn’t work - build is broken if they are included.

They will be included by default in 5.12, till then use icc-brightness-gnome-git

Lenovo Thinkpad X1 Extreme Gen 3 Unable to Adjust Backlight after Upgrading to Linux 5.10

Support

TriMoon 30 December 2020 11:59 7

I just remembered a topic relating to backlight that you might want to check out: