Question about Dell UltraSharp 2001FP 20.1" LCD Monitor
It occurs exactly as described. ~2" vertical band of pixels starts to randomize colors. Then as a sweeping vertical line wipes across this "affected 2inch band" from right to left the pixels organize themselves as the line passes over them. They might all turn black (common) or they will all become some other color. When finished the vertical band will usually look like a rainbow-striped box.
This box manifests "in front" or "on top" of the regular desktop, so all windows and mouse activity passes behind it. The problem will often clear up after a while. Unplugging the monitor sometimes seems to fix it, but it may just coincide with it clearing up on its own?
I believe it is a problem with the panel itself, not the computer, graphics card or drivers. We happen to have 2 of these monitors, and if we switch-in the other one, the problem is never there.
This is heat, and is a common problem; it affects two of mine. You can verify this by having a can of Dustoff available and catching it when it first starts. Blow in at the top of the monitor through the holes in the back in the same region as the band. The color aberration should go away.
My solution was to make a shroud from black foamcore and use a spare power supply fan to blow air into the case at the top. This has worked for my two monitors for about 18 months. You can also just buy a 12v computer cooling fan for this purpose.Should be somewhere around 75mm in size and quiet, 'cuz you'll be putting up with it if it's not.You can either get a general 12v power supply, or an adapter that fits the 12v power out at the back next to the USB input connector.
Posted on Jan 26, 2011
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Posted on Jan 02, 2017
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