[TriLUG] Question on mouse problems with a kvm and X

[Ben Pitzer]

Tom,

I've got an older Belkin OmniCube 4-port KVM that has been working well
for me for quite a while.  One thing to remember, though, is that it has
a mouse built into the switch (your omniview should be the same).  Read
the documentation on the switch to find out about that mouse. 
Basically, your mouse interfaces with the switch, which relays the
signals on to the machine.  The circuitry in your switch emulates the
mouse's signals.  That circuitry, however, only does PS/2, probably not
IMPS/2.  In your X config, try using a less full featured mouse.  That's
what I had to do.  Try the following settings under the mouse section of
your XF86Config-4 file:

Option          "Protocol"              "PS/2"
Option          "Emulate3Buttons"       "true"

Be warned that you might lose the function of your middle mouse button
(assuming you have a three button mouse), but the Emulate3Buttons being
set to true will make your left and right buttons do the same thing as a
middle mouse button when depressed simultaneously.

Good luck!

Regards,
Ben Pitzer

On Thu, 2002-03-14 at 09:21, Tom Francis wrote:
> All,
> 
> I've been going nuts trying to figure out why my mouse gets erratic 
> after switching between servers using a belkin kvm.  Since my windoze 
> boxes work fine when switching, I find it particularly aggravating...
> 
> Specifically, I'm running RH7.2 patched with RH's latest updates for kde 
>   , kernel (RH 2.4.9-31) and X.  I'm using a MS Intellimouse optical and 
> a MS natural keyboard connected to a belkin omniview e-series four port 
> kvm.
> 
> After switching from linux to w2k and back, >80% of the time the mouse 
> in linux will be useless, jumping all over the screen and clicking when 
> it feels like it.  Hitting CTRL-ALT-BS and restarting X seems to be the 
> only way to fix it.
> 
> Going back to windows never seems to be a problem, but any switch back 
> to linux continues to have the problem.
> 
> The clean install of RH7.2 on the same box did the same thing.
> 
> Short of going back to 3 keyboards and mice, I'm stuck!
> 
> Any suggestions on a fix or isolating the problem?
> 
> Thanks!
> 
> Tom
> 
> 
> 
> 
> 
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