Comment 29 for bug 28648

Oops - in editing my comment I removed some words that should have been there. Defaults similar to those shown should be added only if there is an ALPS touchpad detected. The settings are certainly not sane for real Synaptics touchpads.

The settings could be tweaked a bit. One option allows for changing settings via a GUI without restarting X, but there does not appear to be any suitable program for doing so (ksynaptics, tpconfig, etc), and the changes aren't persistent if I remember correctly.