[stella] problems with monitor syncing

Subject: [stella] problems with monitor syncing
From: Adam Wozniak <adam@xxxxxxxxxxxxxxxx>
Date: Mon, 2 May 2005 17:38:21 -0400
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http://cuddlepuddle.org/~adam/help/

These are images of my FPGA TIA driving my VGA monitor.  (Space Invaders,
if you can't tell.)

It looks as though the monitor cannot sync to the horizontal frequency
I'm giving it.  The image is totally stable vertically (i.e. no rolling
or anything), but it looks as though each line is wrapped around the
screen twice (one and a half times?).  Look closely at the score; note
the large gaps between pixels, both horizontally and vertically.

Unfortunately I don't have a scope handy to measure frequencies.

Is it possible my hsync is correct, but that my monitor sucks?  Or have
I done something else wrong?

- -- 
adam@xxxxxxxxxxxxxxxx        http://cuddlepuddle.org/~adam
KG6GZR                       http://cuddlepuddle.org/~adam/resume.html

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