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To: Marek Salwerowicz <marek_sal@wp.pl>
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
In-Reply-To: Your message of "Sun, 15 Jul 2012 13:25:07 +0200."
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Date: Sun, 15 Jul 2012 11:31:17 +0000
Message-ID: <53843.1342351877@critter.freebsd.dk>
Cc: matt <sendtomatt@gmail.com>, freebsd-current@freebsd.org
Subject: Re: Syscons issue Intel D2700
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In message <5002A893.8050803@wp.pl>, Marek Salwerowicz writes:
>W dniu 2012-07-14 19:32, Poul-Henning Kamp pisze:
>> Try the fix I committed in r237203+r237223, that was for a D2500CC
>> which also had bogus VGA behaviour.
>
>Thanks,
>Is it only available in 10-Current or in 9-Stable also ?

I belive the same fix will work all the way back to FreeBSD 2.x or
so when sos@ optimized syscons to use wide copies, but the code
has obviously mutated a fair bit since then.

The fundamental problem seems to be that the video-memory on
modern Intel chipsets don't accept 32 bit writes correctly.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.