KVM switches and X

[Fraser Campbell]

Hi,

I recently hooked up a new KVM and I am getting horrible video when in X.  In 
text mode things appear to be fine.  Doing a bit of research I found claims 
that KVM switches often don't provide enough "bandwidth" for high refresh 
rates such as those used by X.

The effect that I am seeing is a bright glow (shadow?) around all fonts, it's 
very hard on the eyes and I start getting a headache after minutes.  Other 
than this font problem X displays correctly.  If I plug the monitor directly 
into my desktop then X is fine, I've tried different cables and different 
ports in the KVM to no avail.

I tried reducing X's resolution and refresh rates to the point where I had 
quite annoying flicker but the ghosted fonts problem remained.  Does anyone 
have an idea if this is solveable?  The KVM is a miniview ultra (apparently 
made by IOGear).

I'm using xfree86 4.3.0 under Debian testing.  Another guy used this switch 
under X before I did so that's why I'm thinking there might be a solution.

Thanks
-- 
Fraser Campbell <fraser-Txk5XLRqZ6CsTnJN9+BGXg at public.gmane.org>                 http://www.wehave.net/
Georgetown, Ontario, Canada                               Debian GNU/Linux
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