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Date: Sun, 7 Oct 2001 09:23:52 +0200
From: Pavel Machek <pavel@suse.cz>
To: Nicholas Berry <nikberry@med.umich.edu>, root@mauve.demon.co.uk,
        linux-kernel@vger.kernel.org
Subject: Re: Odd keyboard related crashes.
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Hi!

> >>> Ian Stirling <root@mauve.demon.co.uk> 10/05/01 05:01AM >>>
> >I'm running 2.4.10, and the ps/2 keyboard came out of it's socket.
> 
> >On plugging back in, all worked fine, until 10 seconds later there was a
> >crash. (the keyboard worked after being plugged in)
> >No oops, just a reboot.
> >Thinking this must just have been a wierd coincidence, after the system
> >came back up, I tried it again, and again it crashed a few seconds afterwards.
> 
> >It doesn't seem to want to do this again though.
> 
> When the keyboard is powered up (or plugged in), it goes through a self test, and reports the status back to the PC. Normally, a start up dialogue takes place between the PC and the keyboard at this point.
> That's fine when you boot your PC, but if you unplug then re-plug the keyboard, the PC will be sent data it's really not expecting, and the BIOS will be very confused.
> If you ever want to switch a keyboard between PCs, make sure you leave power supplied to it at all times.

BIOS is not alive enough at the time linux boots. This can't be BIOS
issue.
								Pavel
-- 
I'm pavel@ucw.cz. "In my country we have almost anarchy and I don't care."
Panos Katsaloulis describing me w.r.t. patents at discuss@linmodems.org
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