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From: Steve Passe <smp@teal.csn.org>
To: roberto@blaise.ibp.fr (Ollivier Robert)
Cc: bugs@freebsd.org
Subject: Re: problem with S3 server (3.1.2) 
In-reply-to: Your message of "Thu, 10 Aug 1995 10:12:59 +0200."
             <199508100813.KAA14692@blaise.ibp.fr> 
Date: Thu, 10 Aug 1995 02:39:25 -0600
Sender: bugs-owner@freebsd.org
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Hello,
>> I discovered that the VLBUS version cannot be probed properly to
>> determine this fact (X11-3.1 couldn't anyway).  So for it I have to
>> add the following 2 lines:
>> 
>>     DacSpeed	135
>>     Ramdac	"bt485"

> You're sure about that ? I'll have to check mine but it seems to
> find the BrookTree RAMDAC...

Reasonably sure, I owned a PCI version first and used it successfully
without those 2 lines.  WHen I bought a VL-BUS version for another
machine I merely copied the XF86Config file across expecting it to
work as is.  The first thing I noticed was the high end resolutions
were tossed by the server on startup because it didn't determine
that the RAMDAC could run @ 135mHz, so it stopped at around 70 (?).
Adding those 2 lines made the problem go away!

						Steve Passe
						smp@teal.csn.org