cinema_brightness.sh

#!/bin/bash
# usage:
# give it a number between 0 and 1023
# to turn up and down the backlight and
# uncomment line 17 to also reset
# the pixel-brightness and gamma settings
# Clearly the Mini-DisplayPort is plugged in but
# CHECK THAT THE USB IS PLUGGED IN!!!
# (On my machine it matters which port, also.)
# Sometimes the device does not exist.
# Rebooting tends to fix it.
sudo chmod a+rw /dev/usb/hiddev0
# https://github.com/warvariuc/acdcontrol
# compiling was easy just do a make
acdcontrol /dev/usb/hiddev0 $1
# This dang linux distro I'm using fucks all kinds of shit up so I also have to 
# xrandr --output DP-0 --brightness 1 --gamma 1:1:1
# it probably has something to do with the nvidia drivers