*BSD News Article 3363


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From: osynw@warp.mhd.montana.edu (Nate Williams)
Newsgroups: comp.unix.bsd,comp.unix.sysv386,comp.os.linux,comp.sys.ibm.pc.hardware
Subject: Summary: Good SVGA card for X
Summary: cheap and fast
Keywords: X386 1.2E 1.02, Diamond, ET-4000
Message-ID: <1992Aug10.053804.26449@coe.montana.edu>
Date: 10 Aug 92 05:38:04 GMT
Sender: usenet@coe.montana.edu (USENET News System)
Followup-To: comp.sys.ibm.pc.hardware
Organization: Summarizing the world
Lines: 161

First of all, I want to thank all of you who sent me mail.
I learned some things, and found out I need to know more to
make a truly informed decision, but here are my results:

Thanks go to:
sheldon@iastate.edu
jtsilla@damon.ccs.northeastern.edu (James Tsillas)
rich@rice.edu (Richard Murphey)
BELL2@ono.lincoln.ac.nz (S.T. Bell)
broberts@waggen.twuug.com (Bill Roberts)
bryan@PROCASE.COM
ftkang@dal.mobil.com (F. T. Kang [Frank])
rps@arbortext.com (Ralph Seguin)
dwex@mtgzy.att.com (David E Wexelblat)

and a big thanks to
guru@stasi.bradley.edu (Jerry Whelan)

*****************************************************************
I'm still not decided on what card to buy, though it will be between
the Diamond Speedstar + (probably) or the Diamond Speedstar 24.

Diamond Speedstar plus
	PROS:
		1) Supported by X386
		2) Fast, and reasonable cheap
		3) Timing info in the mode Database is already there. :-)
	CONS:
		1) Not as fast as some of the newer ET-4000 cards

Diamond Speedstar 24 -
	PROS:
		1) Faster than the plus
		2) Higher clock rates, and 32K colors (not that I would
		   ever need/use them)
	CONS:
		1) No support in X386 except 640x480 mode.


Card Summary:
^^^^^^^^^^^^^
-------------------------------------------------------------------
 My roommate has a Cardinal VGA765.  It, along with the entire VGA7xx
series uses the Tseng ET4000.

 It's a pretty good card, made by a reputable company.
-------------------------------------------------------------------
Diamond Speedstar+ is still a great deal.
The Sigma Prodesigner IIgs is also a fine card but may cost a bit more.
-------------------------------------------------------------------
	The Diamond SpeedStar 24 does not work with X386
because they implemented a new and improved programmable
frequency generator which is a good thing.  

.... the 24 is suppossed to be the fastest ET4000 card to date.
Some of the benchmarks put it at 25% faster than the Orchid IIs.


... the Speedstar 24 does work with X.   To get the higher resolutions
(1024x768, etc) you have to go into that mode in dos with some type of
graphics software.  That programs the clocks on the card for that mode. 
Then you reboot (soft, not hard) and start up ...

The 640x480 mode (I believe) is set when you power on the computer, so
if you're happy with that mode, then you don't need this little fix
first. 
-------------------------------------------------------------------
I have an orchid pro designer IIs, but I can't reccomend it on the
basis of cost/performance. 
-------------------------------------------------------------------
If you arene't adverse to spending a little more ($189) you might
want to consider the ATI Graphics Vantage.  Fast accelerated mode,
and true VGA Wonder built in.

*The 8514 drivers are currently alpha testing, but they seem to
work pretty well.  I haven't found any bugs yet.

*The Linux people are developing 8514 drivers for X386.
-------------------------------------------------------------------
I have a Boca card with Tseng ET4000 chipset:
  It is a brilliant card and I doubt that I will upgrade again.
  The transfer rate of the Boca card is among the fastest that I have ever
  seen for a non-accelarator board (6500 cps for my machine).
Its resolution and flicker-free display are really great.
Also, the card's build quality is something which I have very rarely seen.

The Boca card cost slightly more than the usual ET4000 cards, but it is 
  definately worth it. 

[But someone else wrote]

Boca no longer sells an ET4000 card.  They now use something that
includes a chip from NCR. The NCR stuff is not X386-compatible... 
-------------------------------------------------------------------
I'd expect that almost any ET4000 card would be the same speed and would
say go with the cheapest one you can find...
-------------------------------------------------------------------
Consensys recommended the "Orchid ProDesigner II (with 1 Meg) and the
Diamond SpeedStar. They said that each their software did well with 
both boards.  A friend here in town is running X on the Orchid board
and thinks it is great.
-------------------------------------------------------------------


Additional info on video cards:
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
===================================================================
1) What exactly is Hi-Color and DAC?

The HiColor RAMDAC basically extends the functionality of the SVGA
card, giving you the ability to do 32768, 65536 or 16M colors in some
of the lower resolutions (640x480, and sometimes 800x600).

Hi-Color is a type of card which can handle 24 bit colours (16 million
colours).  It does not cost a great deal more than the normal svga card,
but virtually no programs use this feature yet.  Add that to the overhead
involved in moving 24 bits for every single pixel to graphics card, and
the result might not be pretty (that is: very pretty, but slow).

===================================================================
2) Why can't X386 run the higher resolution modes that the DS 24 provides?

When they went to 24-bit, 16 million colors, they also needed a whole
bunch of new clock rates.  However, instead of just adding on an
additional 8 or 16 new ones, they changed over from the old method of
just providing a bunch of crystals on the board to a funky device
acronymed something like PLL which is essentially a programmable
frequency generator.  So you tell it what Hz you want and it provides
you such a signal...  And thus X386 does not know how to set the correct
frequency. 

....they are feeling really proprietary about it and won't tell us how
to progam the new and improved programmable frequency generator. 

===================================================================
3) Is it true that X386 does not support the S3 chipset?


X386 does not currently support the S3 911 chipset.  However, there is a
group of people that run Linux that are working on an S3 911 port.  As
S3 is very friendly about giving out programming specs for the card, one
can expect that the Linux group will have a server up and running fairly
soon.  The X386-beta group is in contact with the Linux X386-S3 group
and plans to fold the S3 911 work into the standard X386 distribution as
soon as possible.


Just plain good advice for X386:
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
You can always go for the cheapest with the safe knowledge that the
"next generation" is just a few months away.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The Tseng ET4000 is probably the safest way to go.



Nate
-- 
osynw@terra.oscs.montana.edu |  A hacker w/out a home.  Anyone  interested
work: (406) 994-5991         |  in a used Sys. Admin., with alot of 
home: (406) 586-0579         |  good hacks left?