Sample Fn-F7 script

2007-11-11T20:34:25Z

Bubeck: change LVDS and VGA to use user-defined constants

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:

<code>
# fn-F7
event=ibm/hotkey HKEY 00000080 00001007
action=/usr/local/sbin/thinkpad-fn-f7
</code>

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

<code>
#!/bin/sh
#@ seva sevatech.com

EXTERNAL_OUTPUT=VGA
EXTERNAL_MODE=1600x1200

INTERNAL_OUTPUT=LVDS
INTERNAL_MODE=1024x768

DO=$(basename $0)

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}')

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 --mode $EXTERNAL_MODE --left-of $INTERNAL_OUTPUT"
echo "external" > $STATE_FILE
}

function screen_internal(){
$SU "xrandr --output $EXTERNAL_OUTPUT --off"
$SU "xrandr --output $INTERNAL_OUTPUT --mode $INTERNAL_MODE --right-of $EXTERNAL_OUTPUT"
echo "internal" > $STATE_FILE
}

function screen_both(){
$SU "xrandr --output $EXTERNAL_OUTPUT --mode $EXTERNAL_MODE --left-of $INTERNAL_OUTPUT"
$SU "xrandr --output $INTERNAL_OUTPUT --mode $INTERNAL_MODE --right-of $EXTERNAL_OUTPUT"
echo "both" > $STATE_FILE
}

case "$DO" in
thinkpad-fn-f7)
case "$STATE" in
internal)
screen_external
;;
external)
screen_both
;;
both)
screen_internal
;;
*)
screen_internal
;;
esac
;;
thinkpad-internal)
screen_internal
;;
thinkpad-external)
screen_external
;;
thinkpad-both)
screen_both
;;
*)
echo "usage: rename to thinkpad-internal, thinkpad-external, or thinkpad-both" >&2
;;
esac

</code>

As root,

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

ThinkWiki - User contributions [en]

Sample Fn-F7 script