Comment 16 for bug 787738

I'm not sure if this information is of any use at all but here goes:

I recently installed Oneiric on my girlfriends Samsung laptop, and its trackpad had the exact same behavior as described in comment #13. Note that this laptop does *not* have a Synaptics Touchpad but a different one which I of course can't remember the name of.

I worked around this by installing and booting the latest 2.6 kernel from Natty instead of the 3.0 from Oneiric.
The 2.6 kernel apparently has a bug that recognizes the trackpad as a Synaptics Touchpad, which I benefit from (sacrificing multitouch). More about this here: https://wiki.archlinux.org/index.php/Touchpad_Synaptics#Touchpad_detected_as_Logitech_PS.2F2_mouse_on_a_Samsung_notebook

I'm thinking that maybe downgrading the kernel could be helpful in debugging this.