my_xrandr

#!/bin/bash

#POSITION="--above"
POSITION="--right-of"

if [ "$(xrandr | grep -c " connected")" -lt 2 ]
then
	echo "You seem to only have 1 display connected, we are bailing out"
	exit 1
fi

DVI=$(xrandr | grep \ connected | awk '{ print $1 }' | grep DVI)
HDMI=$(xrandr | grep \ connected | awk '{ print $1 }' | grep HDMI)
DP=$(xrandr | grep \ connected | awk '{ print $1 }' | grep DisplayPort)

if [[ "$DP" != "" ]]
then
	main="$DP"
else
	main="$HDMI"
fi

if [ -z "$2" ]
then
	RES="1920x1080"
else
	case $2 in
		hd)
			RES="1920x1080"
			;;
		qhd)
			RES="2560x1440"
			;;
		uhd)
			RES="3840x2160"
	esac
fi

case $1 in
	hdmi_on)
		if [ "$HDMI" != "" ]
		then
			xrandr --output "$HDMI" --mode "$RES" --same-as "$main"
		else
			echo "We aren't running this since you have no HDMI display connected."
		fi
	;;
	hdmi_off)
		if [ "$HDMI" != "" ]
		then
			xrandr --output "$HDMI" --off
		else
			echo "We aren't running this since you have no HDMI display connected."
		fi
	;;
	dp_on)
		if [ "$DP" != "" ]
		then
			xrandr --output "$DP" --primary --output "$DP" --mode "$RES"
		else
			echo "We aren't running this since you have no DP display connected."
		fi
	;;
	dp_off)
		if [ "$DP" != "" ]
		then
			xrandr --output "$DP" --off
		else
			echo "We aren't running this since you have no DP display connected."
		fi
	;;
	dvi_on)
		if [ "$DVI" != "" ]
		then
			for i in $DVI
			do
				xrandr --output "$i" --mode "$RES" "$POSITION" "$main"
			done
		else
			echo "We aren't running this since you have no DVI display connected."
		fi
	;;
	dvi_off)
		if [ "$DVI" != "" ]
		then
			for i in $DVI
			do
				xrandr --output "$i" --off
			done
		else
			echo "We aren't running this since you have no DVI display connected."
		fi
	;;
	dvi_portrait)
		if [ "$DVI" != "" ]
		then
			for i in $DVI
			do
				xrandr --output "$DVI" --auto --rotate left --output "$DVI" "$POSITION" "$main"
			done
		else
			echo "We aren't running this since you have no DVI display connected."
		fi
	;;
	*)
		echo "This script assumes three monitors are connected."
		echo "Unexpected behavior may occur when disabling the display port device."
		echo ""
		echo "You must supply an argument."
		echo "Options are:"
		echo "	hdmi_on"
		echo "	hdmi_off"
		echo "	dp_on"
		echo "	dp_off"
		echo "	dvi_on"
		echo "	dvi_off"
		echo "	dvi_portrait"
		echo ""
		echo "To change resolution, provide a second option:"
		echo "	 hd"
		echo "	 qhd"
		echo "	 uhd"
		echo ""
		echo "Example:"
		echo "	./my_xrandr hdmi_on uhd"
esac