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From: mike@relgyro.stanford.edu (Mike Macgirvin)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Original IBM AT and VGA
Keywords: IBM AT VGA
Message-ID: <239@helens.Stanford.EDU>
Date: 23 Jun 89 21:18:29 GMT
References: <7244@ecsvax.UUCP>
Sender: news@helens.STANFORD.EDU
Reply-To: mike@relgyro.stanford.edu (Mike Macgirvin)
Distribution: usa
Organization: Stanford Relativity Gyro Experiment (GP-B)
Lines: 32

In article <7244@ecsvax.UUCP> mvolo@ecsvax.UUCP (Michael R. Volow) writes:
>
>Will the original 6 MHz IBM AT support VGA cards without bios changes?
>We were trying to get a Video 7 VGA-16 card to work with such a com-
>uter, and could not get the comuputer to recognize it as a color card,
>no matter how we configured any settings (including the mono-color 
>display switch in the AT, dip settings on the  Video 7, or variations
>in the Setup configuration of the AT). It worked once when we moved it
>to an 8-bit slot but then mysteriously went back to mono. It will 
>display, but in monochrome only. Any help would be appreciated. If you
	The 'mysteriously went back to mono' caught my eye. I have at
home a Paradise VGA-Plus and a Sony 1302. These two interact very strangely.
This might have something to do with what you're seeing... If I turn on
the computer power BEFORE the monitor power, the VGA card is not able to
poll the monitor for its type, and it boots up B/W. If I turn on the monitor
power BEFORE the computer power, I get no display at all (still can't figure
out why) UNTIL I turn the monitor back OFF and then ON again (After the
computer BIOS has initialized the display), then everything works in color. 
This is a generic XT clone. I would recommend setting the computer to
color, and experiment with the timing of turning these things on. If
somebody could explain why mine won't display until I reset the monitor
power, I'd love to know.... it's a real hassle to not be able to just turn
on ONE switch and go...
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+            These views are my own, and may not be correct.                +
+  Mike Macgirvin                                                           +
+  - Systems Administrator  Stanford Relativity Gyroscope Experiment        +
+  - Internet:              mike@relgyro.stanford.edu (36.64.0.50)          +
+  - Bitnet:                mike%relgyro.stanford.edu@stanford              +
+  - Uucp:                  uunet!relgyro.stanford.edu!mike                 +
+  "There must be some kind of way out of here." - Dylan (w/help from Jimi) +
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