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Date:      Fri, 11 Aug 2000 23:26:49 -0400 (EDT)
From:      Greg Scott <gscott@asimware.com>
To:        =?big5?B?VGhvbWFzIENoZW4os6+n06n3KQ==?= <Thomas_Chen@asus.com.tw>
Cc:        freebsd-hardware@FreeBSD.ORG, freebsd-questions@FreeBSD.ORG
Subject:   Re: Data Switch kills Mouse(PS/2)
Message-ID:  <Pine.BSF.4.21.0008112324560.65118-100000@guy.asimware.com>
In-Reply-To: <E8CAD7DB6D79D311BAE300105A67BC99BFD9D6@asusgs1.asus.com.tw>

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> I've got a data switch to connect all my three PCs' Monitor, Mouse, Keyboard
> together, so that I can use one Mouse(PS/2), Keyboard(PS/2) to control all
> of them.
> When I switch one to another, Everything's OK in win98 PC, but something
> wrong in my FreeBSD(4.0r). The following message appear:
> 
>  kernel: psmintr: out of sync (0080 != 0000)
> 
> then the mouse can not work in FreeBSD,
> 
> why??

Did you get a real KVM or just some rotary switch box?

If a switchbox, then yes, you will have problems since they do not
maintain the CLK/DATA lines to the computer they are connected to, so when
you do switch back to them, they will more than likelty be out of sync.

This is what a proper KVM is for. It maintains those signals to the
computers so you do not lose sync.


--
Greg Scott                   |       Asimware Innovations Inc.
Network Administrator        |       600 Upper Wellington St, Unit #D
Website Co-Ordinator         |       Hamilton, Ontario, Canada  L9A 3P9
greg.scott@asimware.com      |       Phone: (905)575-1042
                             |         Fax: (905)575-0095
                             |         WWW: http://www.asimware.com



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