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From: smsmith@hpuxa.ircc.ohio-state.edu (Stephen M. Smith)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: VGA monitor problems
Message-ID: <1991Feb21.015859.8424@magnus.ircc.ohio-state.edu>
Date: 21 Feb 91 01:58:59 GMT
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daneman@czech.sw.mcc.com (Michael Daneman) writes:
>
>I have a NEC Multisync 2A which I use with a Video 7 Fastwrite VGA.
>When I try to run the monitor in 800x600 mode as well as some other
>hi-res modes (740x560 or something like that) my display suddenly
>shrinks and is no longer centered.  I then have to manually adjust the
>size and position of the display and even then I can't always expand
>it to occupy the whole screen.

This is normal.  When switching from a standardized resolution
(640x480 or lower) to higher resolution you will need to recenter
the picture.  Some monitors do a better job of centering these
higher solutions, and some don't.  I used the NEC 2A for a couple
weeks over Christmas and I was always fiddling with the knobs to
center the picture as I changed to 800x600 and back again.

A few really nice monitors have extra circuitry which will "remember"
a particular resolution and automatically place it on the screen in
the manner in which you have programmed it.  Among these monitors
are included the NEC 4D and the new Nanao 9080i (both sell for at
least $900 too!).

>Moreover, when the monitor is in 800x600 mode the display seems to
>wobble, as if ocean waves where moving though it.  This effect is
>especially evident when a cross-hatch pattern (one dot on, on dot off)
>is displayed on the screen.

I did not have this problem when I used the NEC 2A.  This sounds
like you have a fairly cheap video card which is using an interlaced
operation at 800x600.  If these "waves" are "flickers" then you
have a card which runs interlaced in SVGA.  Check the documentation
on your video card.  

>Are these problems due to a defective sync chip in my monitor?  And if
>they are, is there an easy/inexpensive way to fix it?

I doubt if anything is broken or defective.  If these problems have
been with you from the beginning then they are probably due to your
video hardware being pushed to the limit; you'll just have to live
with them, or upgrade.

> -Mike.

Stephen M. Smith  \  +  /
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