Sample Fn-F7 script

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Revision as of 17:38, 12 November 2007 by Seva (Talk | contribs) (Cleanups to the script, added mirror mode, and use --auto as noted in the Talk page)

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This setup will let you use fn-F7 key combination to toggle between internal, external, or both screens. Tested on ThinkPad X60s running Fedora 8.

Note: you will need to change the internal and external resolution until someone fixes this script to figure it out from xrandr, you may also need to change output names from "VGA" and "LVDS" to what your xrandr tells you.

Create /etc/acpi/events/thinkpad.conf:

  1. fn-F7

event=ibm/hotkey HKEY 00000080 00001007 action=/usr/local/sbin/thinkpad-fn-f7

Create /usr/local/sbin/thinkpad-fn-f7:

  1. !/bin/sh
  2. @ seva sevatech.com

EXTERNAL_OUTPUT=VGA INTERNAL_OUTPUT=LVDS

EXTERNAL_LOCATION="--left-of $INTERNAL_OUTPUT"

  1. This is to figure out which X11 display to work on

SU="su $(w -h -s | grep ":[0-9]" | head -1 | awk '{print $1}') -c" export DISPLAY=$(w -h -s | grep ":[0-9]" | head -1 | awk '{print $3}')

  1. Save the state to the file until we can figure it out by running xrandr

STATE_FILE=/var/lib/thinkpad/screen.state; if [ ! -e $STATE_FILE ]; then

       echo "internal" > $STATE_FILE

fi

STATE=$(cat $STATE_FILE)

function screen_external(){

       $SU "xrandr --output $INTERNAL_OUTPUT --off"
       $SU "xrandr --output $EXTERNAL_OUTPUT --auto"
       echo "external" > $STATE_FILE

}

function screen_internal(){

       $SU "xrandr --output $EXTERNAL_OUTPUT --off"
       $SU "xrandr --output $INTERNAL_OUTPUT --auto"
       echo "internal" > $STATE_FILE

}

function screen_mirror(){

       $SU "xrandr --output $INTERNAL_OUTPUT --auto"
       $SU "xrandr --output $EXTERNAL_OUTPUT --auto --same-as $INTERNAL_OUTPUT"
       echo "mirror" > $STATE_FILE

}

function screen_both(){

       $SU "xrandr --output $INTERNAL_OUTPUT --auto"
       $SU "xrandr --output $EXTERNAL_OUTPUT --auto $EXTERNAL_LOCATION"
       echo "both" > $STATE_FILE

}

function screen_toggle(){

       case "$STATE" in
               internal)
                       screen_mirror
                       ;;
               mirror)
                       screen_external
                       ;;
               external)
                       screen_both
                       ;;
               both)
                       screen_internal
                       ;;
               *)
                       screen_internal
                       ;;
       esac

}

  1. What should we do?

DO="$1" if [ -z "$DO" ]; then

       DO=$(basename $0)

fi if [ -z "$DO" ]; then

       DO="internal"

fi

case "$DO" in

       toggle|thinkpad-fn-f7)
               echo wtf
               screen_toggle
               ;;
       internal)
               screen_internal
               ;;
       external)
               screen_external
               ;;
       mirror)
               screen_mirror
               ;;
       both)
               screen_both
               ;;
       status)
               echo $STATE
               ;;
       *)
               echo "usage: $0 <command>" >&2
               echo >&2
               echo "  commands:" >&2
               echo "          status" >&2
               echo "          internal" >&2
               echo "          external" >&2
               echo "          mirror" >&2
               echo "          both" >&2
               echo "          toggle" >&2
               echo >&2
               echo "  If no command is given default is internal" >&2
               ;;

esac

As root,

mkdir -p /var/lib/thinkpad echo "internal" > /var/lib/thinkpad/screen.state chmod 755 /usr/local/sbin/thinkpad-fn-f7 service acpid restart