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From: grog@lemis.de (Greg Lehey)
Organisation: LEMIS, Schellnhausen 2, 36325 Feldatal, Germany
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Subject: Re: KEYBOARD goes crazy
To: Jerry.Kendall@vmicls.com (Jerry Kendall)
Date: Fri, 17 Nov 1995 10:50:40 +0100 (MET)
Cc: hackers@freebsd.org (FreeBSD Hackers)
In-Reply-To: <9511161912.AA12472.gonzo@vmicls.com> from "Jerry Kendall" at Nov 16, 95 02:12:20 pm
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Jerry Kendall writes:
> 
> I just setup two computers, a 386-40 with DOS/WINDOWS and a Pentium-75 running
> FreeBSD 2.0.5R.
> 
> They share the same monitor and keyboard via a 'little switch box'.
> 
> The problem is when I switch from/to the FreeBSD box. The input from
> the keyboard gets messed up. If I run DOS/WINDOWS on both systems, I can
> switch between them without any trouble. It seems to be related to switching
> from/to FreeBSD.
> 
> At the login prompt, I type 'l' and I see '^L' on the screen. If I am
> logged in and type 'd', it interprets it as '^D' and logs me out. I tried
> switch to another screen via 'ALT-Fx' and it still is messed up.

It looks as if the keyboard driver thinks the Ctrl key is pressed.
Could be that it gets some kind of noise when switching, and the
keyboard driver interprets it as a Ctrl key press and no release.  If
that's the case, you should be able to fix it by pressing the Ctrl
key, releasing it and trying again.

Greg