Answers for "changing brightness not working manjaro"

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unable to adjust brightness of screen in manjaro

Hello,
Had the same problem. Checked forums and found this solution. 
On the cmd line 
type  cd /etc/default/grub and add this line in the grub file:

GRUB_CMDLINE_LINUX_DEFAULT="i915.enable_dpcd_backlight=0" 

And afer that run:

sudo update-grub

This solution works for the 5.9.10-1 kernel.

Posted by: Guest on December-16-2020

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