hints on KVM switches w/ X

[Feldman, Jim]

I have noticed that if I start the system boot, and then switch away, both moused and X lose my mouse when I come back later.  If I wait for the boot to complete, no problem and I can pop back and forth.  Otherwise I've been pretty happy with the 4 port Trendware cheapie kvm.  Took generic 4.8 install with kde.  MoBo is an older FIC for the K6-III.  Mouse is logitech trackball w/2 buttons.  

It looks like the trendware,  zonet, phoebe, and who knows how many others are rebadged or slightly different packages of the same board.

jim

-----Original Message-----
From: Tom Convery [mailto:tpc at tomfoo.com]
Sent: Monday, June 02, 2003 10:52 AM
To: Gregory Bond; freebsd-stable at freebsd.org
Subject: Re: hints on KVM switches w/ X


Gregory Bond wrote:
> Has anyone got hints on using KVM switches with XFree86?  I'm using a
>  wheel mouse and moused, but something gets out of whack when I
> switch away then back to X.

What make/model of KVM and mouse are you using? I've had this happen to
me when the KVM doesn't _really_ support the mouse I'm using, e.g. using
an IntelliMouse Explorer with any Belkin KVM I've ever tried.

> Next time I touch the mouse, all sorts of weird things happen for a 
> fraction of a second, then the mouse starts working OK.

This happens when the psm driver gets out of sync with the mouse. The 
driver realizes this is happening and corrects itself, but not until it 
gets enough garbage (which makes the mouse cursor bounce and click all 
over the place) to realize it's out of sync. :-\

If the earlier-posted hint about disabling psm sync checking (with 
"flags 0x0100") doesn't help, replacing your KVM may be the answer. :-(

-tpc

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