Brightness up/down does not do anything in Dell XPS 9320

[SGS]

I have install Garuda linux this morning but i can't reduce or increse the brightness (i3)

I fix it last night. Check updates, and maybe install light and change ~/.config/i3/config # Screen brightness controls bindsym XF86MonBrightnessUp exec --no-startup-id light -A 5%; exec notify-send 'brightness up 5%' bindsym XF86MonBrightnessDown exec --no-startup-id light -U 5%; exec notify-send 'brightness down 5%' Maybe reboot