To: Bruce Graham Williams <bruwilli AT engin DOT umich DOT edu>
Cc: djgpp AT sun DOT soe DOT clarkson DOT edu
Subject: Re: graphics 
Date: Mon, 30 Jan 95 07:48:13 +0200
From: "Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il>

> 	I have a Shamrock svga noninterlaced monitor, but I don't know 
> what driver to set GO32 to in my autoexec.bat file.  I've tried all of 
> the drivers in the /djgpp/drivers/ directory but a only a couple of them 
> work, and even those give me the lowest resolution possible.  Any 
> suggestions would be greatly appreciated.

From the upcoming revised FAQ list for DJGPP:

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Q: The driver for my SVGA doesn't seem to work.
A: Most current SVGA adapters are VESA-compatible, so try the VESA driver
   built into go32 first.  Do not define any driver in the GO32
   environment variable (so that go32 will use its internal driver) and
   try to run some graphics program.  (You might want to run it first with
   the VGA.GRD standard VGA driver, so you will know how the ``correct''
   display should look like.)

   For some cards the updated versions of their drivers are in
   grx103m1.zip maintenance release of GRX, so if the above doesn't work,
   download that file and look for a driver suitable for your card.

   If the driver you need cannot be found neither in cbgrdXXX.zip nor in
   its maintenance releases, or don't work right, try anonymous ftp to:
   omnigate.clarkson.edu, directory /pub/msdos/djgpp/pub.  There are some
   contributed drivers there.

   There is also a program called DISPLAY which includes some additional
   graphics drivers.  DISPLAY is availabale as dispNNN.zip on SimTel
   mirrors in the graphics/ directory.

Q: I've heard that the built-in graphics driver is a VESA driver, but it
   doesn't seem to work on my Acme SVGA/DeLuxe with on-board VESA BIOS
   Extensions.
A: With some SVGAs, the built-in VESA driver in DJGPP 1.12 will work
   reliably only if you explicitly set the number of colors to 256, like
   this:

                set GO32=nc 256

   If you want non-default resolution, you can set it too, like this:

                set GO32=gw 1024 gh 768 nc 256

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In case you wonder: this FAQ will be uploaded to SimTel sometimes
this week (I hope).