Bug#433036: xserver-xorg: Mouse stopped working after update

[Brice Goglin <Brice.Goglin@ens-lyon.org>]

Ralf Angeli wrote:
>> You could try running "cat /dev/psaux" or "cat /dev/input/mice" as root
>> while moving the mouse. If the kernel is fine, some ugly characters
>> should appear in the terminal.
>>     
>
> Nothing appears.  So perhaps it's really a problem of the kernel or a
> related package.
>   

If you already tried downgrading to 2.6.18, I don't see what could cause
the problem then. Does anything interesting appear in dmesg? Is psmouse
or any other required mouse module loaded?

Things like udev might be involved, but there are few chances it breaks
something like this. Checking that you have the following attributes
should be enough.
crw-rw---- 1 root root 10, 1 2007-07-07 21:19 /dev/psaux
crw-rw---- 1 root root 13, 63 2007-07-07 21:19 /dev/input/mice

Brice