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From: t-davidw@microsoft.UUCP (David Weigant)
Newsgroups: comp.graphics
Subject: Monochrome VGA problems
Message-ID: <9175@microsoft.UUCP>
Date: 27 Nov 89 04:04:21 GMT
Reply-To: t-davidw@microsoft.UUCP (David Weigant)
Organization: Microsoft Corp., Redmond WA
Lines: 24

Hi, I hope you people can help me.  I purchased several VGA cards
and monochrome VGA monitors a few months back.  They seem to support
the resolutions of all the VGA modes just fine.  The problem is the
monitors will never display more than four shades of grey (including
white and black).  I have set to video modes that allow for 16 and 
256 colors (which work perfectly on my color system) but will not
display shades on the monochrome system.  Is there a register on the
VGA board that must be set in order to get the full range of shades.
It may be specific to the Trident BIOS on the VGA cards but I really
do not have a clue at this point.  I do have some software that will
specifically program the VGA card to 256 shades and this one piece
of software seems to work fine.  If anyone has any information
regarding this and possibly how I might work around it, I would be 
most thankful.

Oh, one other thing, I have a paradise 16+ VGA card, and it seems
to display all of the shades just fine.  This leads me to believe
it has something to do specifically with the Trident BIOS.

Thx a bunch,
David Weigant
Microsoft Product Support