autoxrandr

#!/bin/bash
LAPTOP_MONITOR=$( cat ~/.LAPTOP_MONITOR )
EXTERNAL_MONITORS="xrandr --output $LAPTOP_MONITOR --auto --primary"
LAST_ADDED_MONITOR=$LAPTOP_MONITOR

# Add Xsettings
[ -f ~/.Xresources ] && xrdb -merge ~/.Xresources

# for HIDPI support
if [ -f  ~/.DPI ]; then
    # Allow DPI file settings for high resolution screens
    EXTERNAL_MONITORS+=" --dpi $( cat ~/.DPI )"

    # HiDPI seetings
    [ -f ~/.XresourcesHIDPI ] && xrdb -merge ~/.XresourcesHIDPI
fi

for output in $(xrandr | grep '\Wconnected' | awk '{ print $1 }'); do
    if [[ $output != $LAPTOP_MONITOR ]]; then
       EXTERNAL_MONITORS+=" --output $output --auto --right-of $LAST_ADDED_MONITOR"
       LAST_ADDED_MONITOR="$output"
    fi
done

for output in $(xrandr | grep '\Wdisconnected' | awk '{ print $1 }'); do
    if [[ $output != $LAPTOP_MONITOR ]]; then
       EXTERNAL_MONITORS+=" --output $output --off"
       LAST_ADDED_MONITOR="$output"
    fi
done

$EXTERNAL_MONITORS