hotplug_monitor.sh

#!/bin/bash                                                                                                                                                                           [14/29]
set -x

function single_screen() {
  xrandr --output HDMI-2 --off --output HDMI-1 --off --output DP-1 --off --output eDP-1 --mode 2560x1600 --pos 0x0 --rotate normal --output DP-2 --off                                      
  awesomewm_restart
}

function external_dual() {
  SCREEN1=$(echo "$EXT_SCREEN" | xargs | awk '{print $1}')
  SCREEN2=$(echo "$EXT_SCREEN" | xargs | awk '{print $2}')

  # xrandr --output "$SCREEN2" --right-of SCREEN1 --auto --primary
  xrandr --output "$SCREEN2" --primary --mode 1920x1080 --pos 1920x0 --rotate normal --output "$SCREEN1" --mode 1920x1080 --pos 0x0 --rotate normal --output DP-1 --off --output eDP-1 --off
--output DP-2 --off
  awesomewm_restart
}

function external_single() {
  SCREEN1=$(echo "$EXT_SCREEN" | xargs | awk '{print $1}')

  single_screen
  xrandr --output "$SCREEN1" --right-of eDP-1 --auto --primary
}

function awesomewm_restart() {
  sleep 2
  kill -HUP $(pgrep awesome)
  sleep 2
}

function windows_arrange() {
  /home/thanh/bin/arrange.py
}

EXT_SCREEN=$(xrandr | grep "\bconnected" | grep -v eDP-1 | cut -d' ' -f 1)
if [[ -n "$EXT_SCREEN" ]]; then
  if [[ $(echo -n "$EXT_SCREEN" | wc -w) == 2 ]]
  then
    external_dual
  else
    external_single
  fi
else
  single_screen
fi