Ubuntu – Touchpad Problem – shortly after login, it stops working

My daughter complained that the touchpad had stopped working on her Acer Aspire One Happy2 that runs Ubuntu 11.10. It turned out she had accidentally pressed Fn + F7 which disables the touchpad rather than Fn + F8 to mute.

Pressing Fn + F7 brought it back to life.

I also have this bug on 10.04 (at me same Elantech touchpad)! I create script /etc/pm/sleep.d/66my-sleep-resume (66 - a start priority)

#!/bin/sh
case "${1}" in
        hibernate)
        # nothing   
                ;;
        resume|thaw)
        modprobe -r psmouse && modprobe psmouse
                ;;
esac

and now all works.