Comment 22 for bug 34501

The touchpad on my almost brand-new XPS M1530 running Ubuntu 8.04 amd64 worked just fine until today when it started acting crazy, shooting the pointer all over the place and randomly generating mouse button presses whenever I tried using it. The only recent system change I have made is to recompile and reinstall a patched wine rc4.

Axel's suggested workaround, ie using the i8042.nomux kernel option, has fixed the problem so far.

Note that when the touchpad is acting this way, Xorg.log reports that it can't find a synaptics touchpad (normally it succeeds) and lots of pmouse.c parity/timeout errors get generated in syslog. Restarting X and even rebooting doesn't fix the problem.

kernel 2.6.24-19-generic
xserver-xorg-input-synaptics 0.14.7~git20070706-1ubuntu4