Date: Wed, 03 Jan 2001 15:27:04 -0800 From: Cy Schubert - ITSD Open Systems Group <Cy.Schubert@uumail.gov.bc.ca> To: christoph.sold@server.i-clue.de Cc: =?iso-8859-1?Q?Thorbj=F6rn?= Axelsson <smurf@salmiak.hemmet.chalmers.se>, stable@FreeBSD.ORG Subject: Re: can't reset keyboard? Message-ID: <200101032327.f03NRk503583@cwsys.cwsent.com> In-Reply-To: Your message of "Wed, 03 Jan 2001 22:26:44 %2B0100." <3A539914.48E34811@i-clue.de>
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In message <3A539914.48E34811@i-clue.de>, Christoph Sold writes:
>
>
> Thorbjörn Axelsson schrieb:
> >
> > I updatede my box from 4.2R to 4.2S yesterday and it won't reboot properly
> > now (I use the 'reboot' command).
> >
> > It shutdowns real nice without any problem but just when it's supposed to
> > reboot it says something like "Can't reset keyboard, trying to reset CPU"
> > and it just hangs so I have to press the reset button manually. This might
> > not sound to complicated but the fact is that it's a remote server and
> > it's a pain in the ass running over there (unlocking a bunch of doors on
> > the way) just to press the reset button.
> >
> > At first I thought that it was something with my stripped down customized
> > kernel but I compiled GENERIC earlier today and it seems to have the same
> > problem.
> >
> > The computer is an old p100 and no keyboard is generally used with it
> > (only plugged in when emergencies) but it seems to have the problem when
> > it's plugged in too.
> >
> > Otherwise the box seems to function just great.
>
> Just speculating: PC hardware uses the keyboard controller to generate
> the reset pulse. On some older hardware, this fails. The CPU is not
> powerful enough to generate a clean reset pulse, too. You may either
> remove boards (thus reducing the load of the reset line), or replace the
> board.
>
> To put it short: It is a hardware problem I have seen in older PCs now
> and then.
I had a similar problem in a 486 a few years ago. Replacing the M
level keyboard BIOS (keyboard controller) with a F (newer) keyboard
BIOS fixed the problem. Newer operating systems will not work with the
older M keyboard controller.
--
Regards, Phone: (250)387-8437
Cy Schubert Fax: (250)387-5766
Team Leader, Sun/DEC Team Internet: Cy.Schubert@osg.gov.bc.ca
Open Systems Group, ITSD, ISTA
Province of BC
"COBOL IS A WASTE OF CARDS."
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