#!/bin/sh

set -e

VGA_STATUS=$(</sys/class/drm/card0/card0-VGA-1/status)

if [ "connected" == $VGA_STATUS ]; then
    /usr/bin/xrandr --output LVDS1 --noprimary --auto
    /usr/bin/xrandr --output VGA1 --primary --mode 1920x1080 --left-of LVDS1
    echo "VGA plugged in" >> /home/my_username/monitor.log
else
    /usr/bin/xrandr --output VGA1 --off
    /usr/bin/xrandr --output LVDS1 --primary --auto
    echo "External monitor disconnected" >> /home/my_username/monitor.log
    exit
fi