5 hdmi-dimmer.sh: dims an HDMI screen using xrandr.
7 usage: hdmi-dimmer.sh [brightness]
8 where brightness is a float from 0.0 to 1.0
10 example: hdmi-dimmer.sh 0.5
17 [ "x$BRIGHTNESS" == "x-h" ] && usage
18 [ "x$BRIGHTNESS" == "x--help" ] && usage
22 xrandr --output HDMI1 --brightness "${BRIGHTNESS}"