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Mail Archives: djgpp/1998/03/24/20:21:49

From: Chris Wahlen <nc AT earthling DOT net>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Allegro+24bit mode
Date: Mon, 23 Mar 1998 22:31:03 -0600
Organization: CyberNews Network
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Message-ID: <35173706.6036C833@earthling.net>
References: <35155D83 DOT 34A12BC6 AT teccart DOT qc DOT ca> <3515B560 DOT 16430355 AT concentric DOT net>
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To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp

> J-Réginald Louis wrote:
> >
> > when I want 24bit mode with vesa 2.0 my computer crash under windows or
> > my screen start to make noise under DOS. I know I can have 24 bit mode
> > (with win95 drv), but with allegro I can't. Any suggestion?
>
> A few of questions:
>
> 1. What type of video card, with how much RAM do you have?
> 2. Have you tried other true-color color depths? Some cards
>    only support 32 bit and not 24 bit. Maybe Windows automatically
>    selects the correct driver for you. (This would fit with
>    Microsoft's "The user is a Moron" theory).
> 3. Are you using SciTech Display Doctor for Vesa 2.0? If you are,
>    do other high-color programs work?

I'm beginning to think that this may be some sort of bug in allegro's code -
using handwritten VESA routines I can get to these modes, but with allegro I
can't.

BTW, I have a Stingray card with 2 MB RAM...

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