Date:	Mon, 17 May 1999 12:23:51 +0200
From:	Hans-Bernhard Broeker <broeker AT physik DOT rwth-aachen DOT de>
Message-Id:	<199905171023.MAA02459@acp3bf.physik.rwth-aachen.de>
To:	s257m AT unb DOT ca (Endlisnis)
Cc:	djgpp AT delorie DOT com
Subject:	Re: code for changing monitor refresh rate
Newsgroups:	comp.os.msdos.djgpp
Organization:	RWTH Aachen, III. physikalisches Institut B
X-Newsreader:	TIN [version 1.2 PL2]
Reply-To:	djgpp AT delorie DOT com

In article <373DA671 DOT 1B605C61 AT unb DOT ca> you wrote:
> Mark Elliott wrote:

> > Does anyone know of a source for (C or ASM) code with which I can set a
> > custom monitor refresh rate in MSDOS.

>     I've been looking for this for a while as well.  I haven't found
> anything.  If anyone knows how to set attributes of "Plug and Play" monitors,
> that would probably do the trick.

1) It's almost certainly impossible to gain any influence on the data
a monitor and a graphics card exchange on their connection from the
*monitor* side: it has no other connection but throught the graphics cards,
so how would you talk to it?

2) There cannot possibly be a general method to do this. The basic
thing is that the graphic card hardware has to be set up differently,
and this means if the card vendor doesn't support you, you're most
likely stuck. At the very least, you'ld have to write your own 100%
hardware-specific, and *very* low-level kind of code, here. Think in
terms of timing-critical, probably 100% undocumented port writes, or
worse.

--
Hans-Bernhard Broeker (broeker AT physik DOT rwth-aachen DOT de)
Even if all the snow were burnt, ashes would remain.

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