# alternatively, you can use the cursor keys:
bindsym XF86MonBrightnessUp exec xbacklight -inc 5
bindsym XF86MonBrightnessDown exec xbacklight -dec 5
-bindsym XF86AudioMute exec amixer -c 1 set Master mute
+bindsym XF86AudioMute exec amixer -c 1 set Master toggle
bindsym XF86AudioLowerVolume exec amixer -c 1 set Master 5%-
bindsym XF86AudioRaiseVolume exec amixer -c 1 set Master 5%+