Kubuntu KDE Переключение мониторов Lenovo ThinkPad X220
1. Создаем обработчик события fn-f7:
echo "event=ibm/hotkey HKEY 00000080 00001007" > /etc/acpi/events/lenovo-fn-f7
echo "action=/usr/bin/autoswitch.sh" >> /etc/acpi/events/lenovo-fn-f7
2. Рестартуем ACPI
sudo service acpid restart
3. Содержимое /usr/bin/autoswitch.sh:
#!/bin/bash
#
#
# http://www.thinkwiki.org/wiki/Sample_Fn-F7_script
screen_change() {
    VGA1_CONNECTED=$( $SU xrandr -q | grep "VGA1 connected" )
echo `date` ${VGA1_CONNECTED} >> /tmp/333
    if [ -n "${VGA1_CONNECTED}" ]; then
        echo "VGA1 is connected"
        xrandr --output VGA1 --auto && xrandr --output LVDS1 --off
    else
        echo "VGA1 is not  connected"
        xrandr --output LVDS1 --auto && xrandr --output VGA1 --off
    fi
}
# based on /etc/acpi/screenblank.sh (Ubuntu 7.10)
# . /usr/share/acpi-support/power-funcs         # for getXuser
getXuser() {
       user=`finger| grep -m1 ":$displaynum " | awk '{print $1}'`
       if [ x"$user" = x"" ]; then
               user=`finger| grep -m1 ":$displaynum" | awk '{print $1}'`
       fi
       if [ x"$user" != x"" ]; then
               userhome=`getent passwd $user | cut -d: -f6`
               export XAUTHORITY=$userhome/.Xauthority
       else
               export XAUTHORITY=""
       fi
}
# end of getXuser from /usr/share/acpi-support/power-funcs
#
for x in /tmp/.X11-unix/*; do
   displaynum=`echo $x | sed s#/tmp/.X11-unix/X##`
   getXuser;
   if [ x"$XAUTHORITY" != x"" ]; then
       export DISPLAY=":$displaynum"
      screen_change
   fi
done
Материалы по теме:
ThinkPad fn-F7: http://www.thinkwiki.org/wiki/Sample_Fn-F7_script
xrandr -q | grep ‘VGA1 connected’ \ && xrandr —output LVDS1 —off —output VGA1 —auto \ || xrandr —output LVDS1 —auto —output VGA1 —off
Источник: Верхом на Debian GNU Linux: Простое переключение мониторов.
Еще кое-чего по теме: http://www.helplinux.ru/wiki/kb:ubuntu-eeepc-switch-display