Small script for reliably disabling the touchpad over suspend/resume. Tested on Ubuntu 12.04 with a Lenovo X230.

touchpad.sh

#!/bin/sh

#
# Small script for enabling/disabling the touchpad
# reliably even if it is "hotplugged" with every
# wakeup from standy. Tested on Lenovo X230 with
# Ubuntu 12.04.
#
# Author:
#   Stefan Hacker <[email protected]>
#

STATE_FILE=~/.disable_touchpad

case "$1" in
    --enable)
        echo "Enabling touchpad"
        rm -f $STATE_FILE
        ;;
    --disable)
        echo "Disabling touchpad"
        touch $STATE_FILE
        ;;
    --install)
        THIS=`readlink -f $0`
        echo "Setting up \"$THIS\" as gnome hotplug handler"
        gsettings set org.gnome.settings-daemon.peripherals.input-devices hotplug-command "$THIS"
        ;;
    --remove)
        gsettings set org.gnome.settings-daemon.peripherals.input-devices hotplug-command ""
        ;;
    "") ;;
    *)
        echo "$0 [option]"
        echo "  --enable     Enable touchpads"
        echo "  --disable    Disable touchpads"
        echo "  --install    Install as gnome hotplug handler"
        echo "  --remove     Uninstall gnome hotplug handler"
        ;;
esac

ENABLE=1

if [ -e $STATE_FILE ];
then
    ENABLE=0
fi

# Work on everything with 'TouchPad' in name.
xinput list | \
sed -n 's/.*TouchPad.*id=\([0-9]\+\).*/\1/p' | \
xargs -n1 -IDEVICE xinput set-prop DEVICE "Device Enabled" $ENABLE