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Question

LCD monitor sudden change in display quality

by Sep 9, 2013 12:38AM PDT

Hi all,

Setup:
- monitor: AOC 23" (bought 3 months ago)
- laptop: Samsung R580
- OS: Windows 7
- graphics card: nvidia geforce 310m
- monitor is connected to laptop with VGA cable

Call me crazy, but yesterday I stepped away from the laptop for a few minutes and when I came back, the image quality of the monitor completely changed. It's hard to describe, but it looks like every second pixel is black, and in the end the image looks like a scottish quilt. It's not a dead pixel problem, it's something that affects the entire image.

Resolution and refresh rate are the same. The image on the laptop screen is correct, so I suspect this is a monitor problem rathern than a graphics card problem. I've tried resetting the monitor settings, no difference.

Any ideas on what happend and how I can fix this?

Thanks!

Discussion is locked

5 Posts
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Clarification Request
Did you do a full reboot of the laptop? I missed that.
by r. proffitt Forum moderator Sep 9, 2013 12:41AM PDT

If the reboot doesn't help we put the monitor on another PC to see where the issue is.
Bob

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No change
by TheSpiff79 Sep 9, 2013 3:10AM PDT

Yes I did reboot the PC and the display is still the same. Unfortunately I don't have a 2nd PC around to see how the monitor reacts...

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This requires
by r. proffitt Forum moderator Sep 9, 2013 3:14AM PDT

Another display and PC to sniff out where the issue is. And this is where many folk have to decide to try a repair counter, ask friends if they can bring one over or just buy another display (which can be cheaper than a repair counter.)
Bob

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The problem is the monitor
by TheSpiff79 Oct 11, 2013 10:28AM PDT

I've connected the laptop to another monitor and the image is fine - so the problem is with the monitor. Just to be clear: there are no dead pixels and the monitor is working / reacting fine. It's just that it's not displaying the image at its maximum capacity, like a bad resolution setting or something.

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Answer
something set it to 256 colors?
by Oct 13, 2013 4:43PM PDT

Run some old DOS game? Those used to change resolutions and color settings in "real mode" and you'd come back from the game to find your 16 or 32 bit colors were changed to old DOS game 256 color scheme.

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