I had a disaster yesterday with my Win2k system, as a consequence I needed to get my Linux system displaying its X desktop directly as opposed to using the Win2k system's X server (cygwin).
I had to run xf86config as I'd never set up X on the system before, it actually went quite smoothly without any serious problems and I had my xfce desktop up and running very easily - apart from a non-working mouse.
My problem then was that I didn't know what the entries in the XF86Config file were for different mouse types. The HOWTOs tell you which lines to change for different types of mice etc. but they don't tell you what are the possible valid entries. Where can one find this information? I simply couldn't get a PS/2 mouse set up to work and ended up finding a serial mouse and using that.
Does one need to change the link from /dev/mouse to /dev/ttyS0 if using a PS/2 mouse? I worked out that the Protocol setting needed to be PS/2 but still couldn't get it working.