Comment 17 for bug 47971

This thread has degenerated into two seperate issues: 1) Cannot disable the
tap to click "feature" 2) crazy and random mouse. This fix resolves the tap
to click issue. It has had mixed success on the random mouse issue. If you
are sure that your setup works with windows, I would try using a purely
xfree and xorg environment and see if one or the other works better. This
will require using two different live CDs I believe debian has xfree86
instead of xorg, so I recommend you give it a try and see if it works. If it
does not, it is likely a probelem with the configuration of your kernel. You
might try scaling back your mouse module to the most basic mouse by adding
the proper switch to the proper module in the /etc/modules file. Also,
previously ALPS pads were slightly different than synaptics pads. You should
find out which pad you use (which can be a chore) and see if anyone else is
having a problem with it. At one point I had to build a custom configged and
patched kernel to get this feature work because the ALPS pad was not
supported by the kernel at that time. This issue sounds like the mouse is
getting out of sync with the driver. This is a common problem among those
who use KVM switches. Try to also make sure that you are not doing anything
weird with your screen. You may be able to fix the issue by switching to a
terminal (ctrl + alt + f1) and then switching back to the graphical
interface (... + f7).

Sorry I don't have a definite answer for you reguarding this issue.

James