On Tue, 10 Oct 2006 02:51:07 +0800, Dan Jacobson staggered into the
Black Sun and said:
> Kindly tell me if there is any hope for using my PS2 Trackman Marble+
> mouse with a Thinkpad R50e, which only has USB sockets. I have
> purchased a female PS2 to male USB connector. What do I put in
> xorg.conf on Debian?

If the USB->PS/2 adapter works (it should), the mouse will be seen as
/dev/input/mouseN . N will probably be 0 or 1. Check both. You don't
really want to use /dev/input/mice for the X stanza here, I think, as
the built-in Trackpoint reports things in PS/2 not IMPS/2. Like so:

Section "InputDevice"
Identifier "USB mouse" # just put a unique identifier here
Driver "mouse"
Option "Protocol" "IMPS/2" # probably.
Option "Device" "/dev/input/mouseN" # fix this
Option "ZAxisMapping" "4 5" # so wheel will work
Option "Buttons" "N" # fix this
EndSection

....there was probably no hope for using this thing with a PS/2 port
unless it reported events using the bare PS/2 protocol. HTH,

--
I think I'll have to put on 500 pounds of subwoofers, amps, and other
delicious herbs. --MegaHAL, trained on ASR
Matt G|There is no Darkness in Eternity/But only Light too dim for us to see