When using Gnome3 I was really impressed with the support for multiple screens. Then I switched to LXDE and was very disappointed in that desktop’s support for multiple screens. In fact so disappointed that I sat down and read the man-page for ‘randr’ and hacked up the following script:

#! /bin/bash

cmd=$1; shift

case $cmd in
    on)
        # turn on VGA1, auto-select size, right of laptop screen
        xrandr --output VGA1 --auto --right-of LVDS1
        ;;
    off)
        xrandr --output VGA1 --off
        ;;
    list)
        xrandr
        ;;
    *)
        echo "Commands: on, off, list"
esac

In my mind it’s vastly more usable than ‘lxrandr’ :)