Comment # 6 on bug 1043653 from Jeff Piatt

I tried blacklisting hid-multitouch. The result: touchpad is non-functional.
Sensitivity/pressure settings DO show up in the touchpad GUI settings as
enabled. Running xinput shows only the SynPS/2 Touchpad (not the DLL... one),
and after resume from suspend shows neither. So basically, the result seems the
same as when I ignore the DLL... touchpad.