lightDM moniter setup

screen-setup.sh

#!/bin/sh
DEFAULT="LVDS1"

moniters=`xrandr | grep connected | sed 's/ted.*/ted/g' | sed 's/ /-/g'`

for monit in $moniters; do
  if grep $DEFAULT <<< $monit > /dev/null; then
    if grep "disconnected" <<< $monit > /dev/null; then
      echo "LVDS not connect, big problem, skip setting" >> /tmp/dm.log
      exit 0
    else
      echo "LVDS exist, use LVDS" >> /tmp/dm.log
    fi
  fi
done

for monit in $moniters; do
  if grep "\-connected" <<< $monit > /dev/null && grep -v $DEFAULT <<< $monit > /dev/null; then
    echo "external moniter $monit connect, tempory off" >> /tmp/dm.log
    xrandr --output `sed 's/-.*//g' <<< $monit` --right-of $DEFAULT --auto
  fi
done

use for setup moniter on LightDM while two or more monitor connect