Comment 8 for bug 346645

Actually, it's more like :
echo "options psmouse proto=imps" | sudo tee -a /etc/modprobe.d/options.conf

2009/5/25 n3ko <email address hidden>

>
> You can make the module option permanent with this:
>
> echo "options psmouse proto=imps" |sudo tee -a /etc/modprobe.d/psmouse
>
> Later, when this bug is fixed, you can try to remove the
> /etc/modprobe.d/psmouse file.
>
> --
> [jaunty] elantech touchpad does not scroll
> https://bugs.launchpad.net/bugs/346645
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>
>