From: dmm125 AT bellatlantic DOT net
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Help with GRX20
Date: Sat, 27 Jun 1998 19:20:58 GMT
Organization: Deja News - The Leader in Internet Discussion
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Message-ID: <6n3gmq$isu$1@nnrp1.dejanews.com>
References: <358DF8FB DOT 3358565A AT bellatlantic DOT net> <358DF4D3 DOT 91A73CE8 AT techfak DOT uni-kiel DOT de>
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To: djgpp AT delorie DOT com
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In article <358DF4D3 DOT 91A73CE8 AT techfak DOT uni-kiel DOT de>,
  Hartmut Schirmer <hsc AT techfak DOT uni-kiel DOT de> wrote:
>
> Donn Miller wrote:
> >
> > I'm having problems using GRX20.  First, I can get 640x480 resolution,
> > but it only gives me 16 colors.  To get 256 colors, I can only get
> > 320x200 resolution, even though I'm using stdvga.  My video card (SiS
> > 5598) is unsupported.
>
> If it's really VGA compatible, you should get 360x480x256 at most.
> On DOS systems and if your card has a VESA compatible bios, use the VESA
> driver:
>
>   set GRX20DRV=VESA
>

OK.  Wow -- I can get 1024x768 x 16 million colors.  I've set:

set GRX20DRV=vesa gw 640 gh 480 nc 256

but I still get 1024x768 and 16million colors.  I'm using GR_custom_graphics
mode.  Actually, I'd like to cut it down about 800x600 and about say 16bpp
giving 32k or 64k colors.

Little bit too hi-res for my 15" monitor.

Maybe I have to set GRX20DRV and mention bpp, and use GR_custom_bpp_graphics
instead?

Also, with 640x480x256 the pictures look real splotchy.  Maybe it's in palette
mode?

Thanks for the help,

   Donn

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