Manjaro (kde / gnome) 20.2 Screen brightness

hi there
i installed manjaro (kde / gnome) 20.2 , but screen brightness on my laptop ( intel/nvidia 1050 graphic card ) does not work. i can not increase or decrease that and that is invariable.
thanks for any help


See if you can provide some more information based on this instructions

After that will be much easier to someone to point you in the right direction.

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if kernel is 5.9.x try i915.enable_dpcd_backlight=0 as boot parameter

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