#!/bin/bash
intern=eDP-1
extern=DP-2

if xrandr | grep "$extern disconnected"; then
    echo "display $extern is disconnected"
    exit
fi
if [ "$1" == "on" ]; then
    xrandr --output "$extern" --mode 1920x1080 --rate 119.98 --primary
    xrandr --output "$intern" --off
else
    xrandr --output "$intern" --auto --primary
    xrandr --output "$extern" --off
fi