#!/bin/bash intern=eDP-1 extern=DP-2 if [ "$1" == "on" ]; then if xrandr | grep "$extern disconnected"; then echo "display $extern is disconnected" exit fi xrandr --output "$extern" --mode 1920x1080 --rate 119.98 --primary xrandr --output "$intern" --off else xrandr --output "$intern" --auto --primary xrandr --output "$extern" --off fi