#!/bin/bash

BACKLIGHT_FILE=~/.backlight
BACKLIGHT_MIN=10

pptk-led set red 0
pptk-led set green 0
pptk-led set blue 0
pptk-cpu-sleep disable

# restore last saved backlight level
BACKLIGHT=$((`cat $BACKLIGHT_FILE` >= $BACKLIGHT_MIN ? `cat $BACKLIGHT_FILE` : $BACKLIGHT_MIN))
pptk-backlight set_percent $BACKLIGHT