x/.local/bin/xrandr-extend-hdmi.sh

   1 #!/bin/sh
   2 for ex in DP2-1 DP2 DP1 HDMI1 HDMI-1 HDMI2 HDMI-2
   3 do
   4         if xrandr | grep -q "$ex connected"
   5         then
   6                 echo "$ex detected"
   7                 xrandr --output eDP1 --auto --output $ex --right-of eDP1 --auto
   8                 exit 0
   9         fi
  10 done
  11 echo "No external screen detected"