Bug#338347: psmouse driver keeps losing synchronization

[David Hugh-Jones <davidhughjones@gmail.com>]

Package:linux-image-2.6.12-1-686
Version:2.6.12-10

This is an intermittent bug that has just got worse. I have a Toshiba
Portege 7020CT with a builtin trackpoint and a PS/2 mouse that I
connect via the PS/2 port in a port extension. The trackpoint is
working fine but the PS/2 mouse behaves strangely (moves at random,
gives out random mouse click events) and I get this in my kern.log:
Nov  9 17:45:49 portege kernel: psmouse.c: Mouse at
isa0060/serio1/input0 lost synchronization, throwing 1 bytes away.

I have "psmouse proto=bare" in my /etc/modules, and have tried the
solutions suggested at
http://www.kerneltraffic.org/kernel-traffic/kt20040212_252.html,
including stopping apmd. I also have speedstep_lib in my /etc/modules.

Any other info on request.
Cheers
David