x-displays.sh

#!/bin/bash

# Unity doesn't remember my screen layouts, so I made this to do it for me.
#
# https://gist.github.com/e1892192ea8dd03a210d2890f8f966e7
#
# GPLv3+, (c) Chris Burgess @xurizaemon
#
# To update on gist.github.com:
# `gist -u https://gist.github.com/e1892192ea8dd03a210d2890f8f966e7 ~/bin/x-displays.sh`

CONNECTED=$( xrandr | grep ' connected' )

LAYOUT=unknown
if [[ $CONNECTED = *"DP-2-1"* ]] ; then
  if [[ $CONNECTED = *"DP-2-2"* ]] ; then
    LAYOUT=dock_displayport_both
  fi
elif [[ $CONNECTED = *"DP-2-3"* ]] ; then
  if [[ $CONNECTED = *"DP-2-1"* ]] ; then
    LAYOUT=dock_vga_hdmi
  fi
elif [[ $CONNECTED = *"HDMI-2 connected"* ]] ; then
  LAYOUT=hdmi-2
elif [[ $CONNECTED = *"DP-1 connected"* ]] ; then
  LAYOUT=thunderbolt
fi

case "$LAYOUT" in
  "dock_displayport_both")
    # Displayport 1, 2, laptop
    xrandr --output DP-2-2 --auto --left-of eDP-1
    xrandr --output DP-2-1 --auto --left-of DP-2-2 --primary
    echo "Configured for $LAYOUT"
    ;;
  "dock_vga_hdmi")
    # HDMI, VGA, laptop
    xrandr --output DP-2-3 --auto --left-of eDP-1
    xrandr --output DP-2-1 --auto --left-of DP-2-3 --primary
    echo "Configured for $LAYOUT"
    ;;
  "thunderbolt")
    # Thunderbolt, laptop
    xrandr --output DP-1 --auto --left-of eDP-1 --primary
    echo "Configured for $LAYOUT"
    ;;
  "hdmi-2")
    # Set to 57Hz for monitor support
    xrandr --newmode "1920x1080_57.00"  163.00  1920 2040 2240 2560  1080 1083 1088 1119 -hsync +vsync
    xrandr --addmode HDMI-2 "1920x1080_57.00"
    # HDMI, laptop
    xrandr --output HDMI-2 --mode "1920x1080_57.00" --left-of eDP-1 --primary
    echo "Configured for $LAYOUT"
    ;;
  *)
    echo "Layout $LAYOUT not known."
esac