2display.sh

#!/bin/sh

IN=LVDS-0;
setoff() {

    for display in `xrandr | awk '/ disconnected/ {print $1}'`; do
        echo "maybe disabling $display";
        xrandr --output $display --off;
    done;
}

seton() {
    CMD="xrandr --output $IN --auto --primary";
    for display in `xrandr | awk '/ connected/ {print $1}'`; do
        if [ "$display" != "$IN" ]; then
            CMD="$CMD --output $display --auto --right-of $IN";
        fi
    done;

    echo $CMD;

    $CMD;
}

setoff;
seton;

exit 0;