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From: dconway@hpldsla.sid.hp.com (Dan Conway)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: VGA "Wavy" picture problem.
Message-ID: <31320002@hpldsla.sid.hp.com>
Date: 11 Mar 91 20:54:08 GMT
References: <6040011@hpspkla.spk.hp.com>
Organization: HP Scientific Instruments Division - Palo Alto, CA
Lines: 23

bollard@hpspkla.spk.hp.com (Lee M. Bollard) writes:
> My monitor image is "wavy".  This problem is getting worse lately.
> 
> I have Gateway VGA monitor (Samsung??) with an ATI VGA Wonder Plus card.
> 
> The waving goes away after the monitor has been on for awhile.  The
> wavyness used to go away after just a few minutes, but lately it's
> been lasting up to 30 minutes.
> 
> Is this a monitor problem or a VGA card problem?  What can I do to
> fix this? (warranty is expired...naturally..)
> 
> Comments?
> 

This probably isn't it, since it doesn't explain the time dependency, but is
there any chance that you have a source of electromagnetic radiation near the
monitor?  I had a waviness with my HP VGA card and monitor just after I
purchased it.  It was due to a small electric clock about 2 feet from the
monitor.  I didn't figure it out for some time due to the distance involved.

Dan Conway
dconway@hpldsla.sid.hp.com