[ltp] Wheel mouse doesn't work
Matt Graham
linux-thinkpad@linux-thinkpad.org
Thu, 9 Jun 2005 15:56:26 -0400
On Thursday 09 June 2005 14:01, after a long battle with technology,
James Knott wrote:
> I've been trying to get a wheel mouse to work in SuSE 9.3, on my R31
> ThinkPad. However, even though it's configured exactly the same way,
> as on the desktop system, the scroll wheel does not work on the
> ThinkPad, while running Linux. I've tried two different mice (both
> Logitech), but neither work, with Linux on the ThinkPad, but both
> work with XP on the ThinkPad as well as Linux on my desktop system.
Is this a PS/2 mouse? On Thinkpads, the PS/2 port in the back shares
data lines with the built-in Trackpoint. Events from the device
connected to the PS/2 port are reported on /dev/psaux . The Trackpoint
uses the PS/2 mouse protocol. Most wheelmice use the IMPS/2 protocol.
Using different protocols for the mouse on the PS/2 port and the
Trackpoint is theoretically possible, but there are currently some
problems with X that make it... difficult. USB mice, OTOH, work fine.
You may want to check the archives of this mailing list and see if
anyone's posted a solution in the past. It's possible--not insanely
likely, but possible. It may be something as simple as adding
"psmouse.proto=imps" to the kernel command line (assuming a 2.6 kernel
with PS/2 mouse support built in) or "rmmod psmouse && modprobe psmouse
proto=imps" if PS/2 mouse support is modular. It may not be. I don't
know for sure; I've never used the PS/2 port on my Thinkpad. HTH
anyway,
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