Comment 147 for bug 550625

Possible workaround is to unload and reload the module on resume. In Ubuntu create the following new file named e.g. "90-psmouse-reload" in "/etc/pm/sleep.d/" with the following content:

#!/bin/sh
case "$1" in
    thaw|resume)
        rmmod psmouse; modprobe psmouse
    ;;
esac
exit 0

However I still consider this Dell contributed driver being the first step. I consider features like horizontal scrolling and sensitivity settings essential. IMO the touchpad by default is hypersensitive and it happens very often than one accidentally invokes a double-click action. While clicking the mouse button (right above the touchpad surface) the thumb accidentally touches the touchpad surface. The resulting action is two subsequent clicks, first one wanted, second one unwanted.