toggle-hdmi

#!/usr/bin/env sh

connected=($(xrandr -q | grep ' connected' | awk '{print $1}'))
enabled_num=$(xrandr -q | grep '\*' | wc -l)

echo $connected
echo ${connected[@]}
if [[ "${#connected[@]}" -ne 2 ]]; then
    echo "Only $connected outputs connected, can't toggle display"
    # Force LVDS only
    xrandr --output LVDS1 --auto --output HDMI1 --off
    exit 1
fi

# Is HDMI connected?
hdmi_mode="off"
for output in "${connected[@]}"; do
    if [[ "$output" == HDMI1 ]]; then
        hdmi_mode="on"
    fi
done

if [[ $hdmi_mode == "off" ]]; then
    echo "HDMI not connected, maybe you mean VGA?"
    exit 1
fi

if [[ "$enabled_num" == "1" ]]; then
    echo "Enabling HDMI output to the right of laptop"
    xrandr --output LVDS1 --auto --pos 0x0 --output HDMI1 --auto --right-of LVDS1
elif [[ "$enabled_num" == "2" ]]; then
    echo "Disabling HDMI output"
    xrandr --output LVDS1 --auto --output HDMI1 --off
fi