I need help with a monitor/display adapter problem that I'm not sure I
can even describe adequately to find help elsewhere on the web. But I
know for sure there's at least one person on this list who knows what's up.
I have a 17" Samsung SynMaster 753DF monitor and an NVIDIA GeForce2 Pro
display adapter. The monitor produces a stable image with good color
and contrast but has always exhibited a problem wherein the horizontal
size of the image varies with horizontal placement on the screen. It's
normally not a problem and generally not noticeable unless looking at
detailed, rectangular things like architectural images.
It is most noticeable with the Windows Freecell game. With all the
cards displayed on the game board window one can clearly see a
difference in the width of the cards as one moves from center to either
the right or left side of the screen. At the center a card is 18mm wide
on the screen. At the right or left edge of the screen the cards are
20mm wide. In between they do a smooth transition. From my limited
knowledge of such things I assume the hozizontal oscillator is changing
frequency as it moves across the screen.
Surprisingly, I just now noticed (by measurement and not by eye) that
there is a similar problem in the vertical axis but this problem is not
symmetrical about the center. Cards at the very top of the screen are
16mm tall and only 14mm tall at the bottom of the screen.
I just went to examine the monitor on my wife's computer (even cheaper
stuff than my cheap stuff) and see that the horizontal size problem is
there as well and even more exaggerated. The vertical size, however, is
consistent from top to bottom.
What am I seeing? Are these typical problems with cheap monitors?
Drift with age? Are the display adapters at fault? What do I need to
do to fix it?
Thanks. Any advice will be greatly appreciated.
Chuck Norcutt
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