From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Mon, 25 Sep 1995 21:35:48 -0400
From: Jesse M. Hammons jhammons@rogue.princeton.edu
Subject: Success w/ Diamond Stealth VLB ?
Topicbox-Message-UUID: 276f2f96-eac8-11e9-9e20-41e7f4b1d025
Message-ID: <19950926013548.o0xQ861yR3M6TBSmc-nzMXiwM_l9tq_o42BBkdmghgg@z>

In article <95Sep25.202203edt.78424@colossus.cse.psu.edu>,
 <9fans@cse.psu.edu> wrote:
>In general, there are at least three things you need to know:
>	VGA chip
>	RAMDAC
>	clock generator
>Even then, you need to know how they interact.
>
>What did the /lib/vgadb entry you tried look like?
>

here is the entry:
ctlr
	0xC0060=" Diamond Computer Systems" 
	link=vga
	hwgc=s3hwgc
	ramdac=att20c490
	link=s3clock
	clock=icd2061a
	ctlr=s3805
	link=ibm8514
I hacked this entry together by looking at other entries and by doing some 
guessing. As I said before, the ramdac is actually Diamond's SS2410, but
it is (somewhat) compatible with the att20c490.  

when I start aux/vga it recognizes the card (i.e., it finds that string in RAM
but the display is funky.  I get what looks like a split screen, and the top 
half and bottom half are the same, with some other wierd stuff.  It's hard to 
describe, but in my experience these symptoms are evidence of a timing problem.

I've read the the order in entry is the order in which the init functions are
called.  Maybe I should try reording them ?

thanks,
- Jesse