To: sasbnb AT unx DOT sas DOT com
Cc: djgpp AT sun DOT soe DOT clarkson DOT edu
Subject: Re: High res modes with djgpp. 
Date: Tue, 10 Jan 95 08:45:37 +0200
From: "Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il>

> I have loaded the latest version of djgpp from oak.oakland.edu and
> am having problems getting it to go into any video mode other than
> 320x200.
>
> I have set go32=driver c:\djgpp\drivers\vga.grd gw=640  gh=480 nc=256.

vga.grd is for standard VGA cards which can't do 256 colors in more
than 320x200.  Find a driver for your specific card (which one is that?).

> The driver physically exists at that path. I have also noticed that in
> the DJ doc's that some times the driver path uses slashes '/' and that
> at others, it uses backslashes '\'. Which is right?

With DJGPP 1.12, it doesn't matter.

> I have tried every hardware specific driver (paradise, genoa...) and
> gotten crashes on all but vga.

Do you work under DPMI environment (like Windows, QDPMI or other DPMI
server)?  Graphics doesn't work in DPMI mode.  If you aren't sure
about this, run go32 with no parameters; if it reports DPMI memory,
you are in DPMI mode.  In the latter case, if you are NOT running in
Windows DOS box, you can switch to non-DPMI mode by adding ``nodpmi''
parameter to GO32 environment variable.

> I have tried to load my viper vesa driver with vprmode vesa or not
> and it makes no difference.

Is your card Viper, then?  If you can't find specific drivers for it,
look in the DISPLAY program (found on SimTel mirrors), it has some
additional drivers.  I'm told that the built-in VESA driver (used if
you don't put any driver into GO32 variable) only works in 800x600
mode; try this combination in VESA mode.