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From: Terry Lambert <terry@lambert.org>
Message-Id: <199607102105.OAA27228@phaeton.artisoft.com>
Subject: Re: Some recent changes to GENERIC
To: nate@mt.sri.com (Nate Williams)
Date: Wed, 10 Jul 1996 14:05:33 -0700 (MST)
Cc: jgreco@brasil.moneng.mei.com, davidg@Root.COM, hackers@FreeBSD.ORG
In-Reply-To: <199607101640.KAA23663@rocky.mt.sri.com> from "Nate Williams" at Jul 10, 96 10:40:16 am
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> > >    We have to remove sio3 because we can't disable it by default and it
> > > conflicts with the most common SVGA cards.
> > 
> > That's a plausible argument but I remind you that we've been through several
> > releases with sio3 enabled.
> 
> Yes, but 'newer' SVGA cards *now* blow up when sio3 is enabled.  In the
> past this wasn't a big deal, but even in 2.1R we had quite a few folks
> who got wiped out by sio3 (read Usenet), and this is only going to get
> worse with the faster S3/ATI/Mach cards becoming more commonplace.

I posted the assembly code used to detect these cards once already.

If you don't probe the location because of an existing conflict with
a registration from the console driver, then you don't have a problem.

Look at the ATI home page.  The assembly code is posted there (as well
as being in the -current list archives, thanks to me).


					Terry Lambert
					terry@lambert.org
---
Any opinions in this posting are my own and not those of my present
or previous employers.