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From: ressler@galileo.ifa.hawaii.edu (Mike "IR" Ressler)
Newsgroups: comp.sys.ibm.pc.misc
Subject: Re: SUPER VGA or what there is
Message-ID: <12525@uhccux.uhcc.Hawaii.Edu>
Date: 17 Apr 91 23:13:47 GMT
References: <7309@munnari.oz.au> <6710003@pollux.svale.hp.com> <1991Apr17.192840.5486@maverick.ksu.ksu.edu>
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Organization: UH IfA and NASA Infrared Telescope Facility
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In article <1991Apr17.192840.5486@maverick.ksu.ksu.edu> nan@matt.ksu.ksu.edu (Nan Zou) writes:
>It's true that different  cards are not  hardware  compatible with each
>other. But I have seen some programs that have VESA SuperVGA autodetect
>without the use of any device  drivers. Fractint is one them, I can put
>it in Super VGA mode without loading a specific video driver.

I have run Fractint (v15.0) both with my card's VESA bios installed and
without it.  (It's a Diamond Speedstar with the Tseng 4000 chipset and 1
Meg RAM.) The program draws things MUCH faster when I tell it to use the
Tseng 4000 driver rather than the VESA driver (I'm guessing at least a
factor of two).  It's so much faster that I always use a Tseng driver if a
given application has one rather than the VESA. Anybody know what's going
on here and if the slowdown is due to something I'm not doing right?
--
  Mike Ressler - Infrared Photon Jockey     ressler@galileo.ifa.hawaii.edu

  If at first you don't succeed, get a bigger sledgehammer.