#!/bin/sh
for card in $(find /sys/class/backlight/ -type l); do
    if [ -r "/var/cache/backlight/$(basename "$card")-brightness-old" ]; then
        cp "/var/cache/backlight/$(basename "$card")-brightness-old" "/sys/class/backlight/$(basename "$card")/brightness"
    fi
done

exec chpst -b backlight pause
