added brightness control

i3/config

@@ -193,6 +193,10 @@ bindsym $mod+x exec i3lock --nofork --color 000000 --show-failed-attempts
 # Use Flameshot when hitting the Super+p keybind
 bindsym $mod+p exec flameshot gui
 
+# Use Xbacklight to control brightness
+bindsym XF86MonBrightnessDown exec --no-startup-id xbacklight -dec 5
+bindsym XF86MonBrightnessUp exec --no-startup-id xbacklight -inc 5
+
 # Start i3bar to display a workspace bar (plus the system information i3status
 # finds out, if available)
 bar {