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From: milne@ics.uci.edu (Alastair Milne)
Newsgroups: comp.sys.ibm.ps2.hardware
Subject: Re: Composite Video Output from PS/2
Message-ID: <28193EE9.23231@ics.uci.edu>
Date: 27 Apr 91 09:05:45 GMT
References: <7265@mace.cc.purdue.edu> <91108.191806U39648@uicvm.uic.edu> <gah.672139684@hoodlum>
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Organization: UC Irvine Department of ICS
Lines: 21

In <gah.672139684@hoodlum> gah@hood.hood.caltech.edu (Glen Herrmannsfeldt) writes:

>As for composite video and VGA ... what does a VGA output look like
>in CGA mode?  I have a real CGA that I use if I want composite video
>(not MCA, though).  If you want color (was that implied) then it would
>be harder, but it may be possible to convince a VGA to generate a monochrome
>composit video signal.

   It looks exactly like a CGA, including in what modes colour is available,
   and how many at a time.  I don't know if that's good news or bad --
   aesthetically, it's certainly bad, but maybe it's good for program
   behaviour.  

   Is there any such thing as a CGA board, even EGA, for microchannel?
   Or did you mean something else by MCA?

   For a few more interesting modes you might look at MCGA, which is, or was,
   used on the model 25. 


   Alastair Milne