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I have a 24 inch Acer AL2416W LCD monitor with a native resolution of 1920 x 1200. Recently, after I brought it with me to a LAN party, it began acting oddly.
Certain shades of yellow, like the ones shown below in Ensign Harry Kim's tactical uniform, and some shades of blue cause artifacts where they would be displayed.
Pasting this screen cap into paint causes no issues at first, though the artifacts are still there. I can copy the color from the pixels under the artifacts and fill a whole window with it with no issues.
The interesting thing is that zooming in on the affected area causes the monitor to completely white out. Minimizing the window with Windows+D restores the full desktop instantly. This also happens when the color fills the screen in some other way, such as when there's a close up of Harry.
This isn't a video driver issue, the same thing happens when I connect other systems to the monitor using VGA or DVI.
What could be causing this? Is there a way I can fix it?
If it's the monitor that's failing (and it looks like it is) then doing a screen shot won't show the problem as, as far as the graphics card is concerned, all the pixels are the right colour. – ChrisF – 2012-02-23T22:19:44.667
Have the in-monitor settings been changed? For example, has the contrast been increased? – Synetech – 2012-02-23T23:12:23.447
@synetech I did change the monitor to "Gaming Mode" at the LAN party. That increased the brightness. – Tyler Faile – 2012-02-23T23:19:53.033
@Kalamane, did you change it back? The effect in the photo looks kind of like clipping. – Synetech – 2012-02-23T23:21:22.797
@synetech I did. There was no effect, though I didn't power cycle itself after. Maybe that will help. What's clipping in this instance? – Tyler Faile – 2012-02-23T23:27:51.760
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Clipping in general is when a specific value cannot be correctly used, so the highest (or lowest) value possible is used in its place. For example, if you try to take a picture of a shiny metal object, the specular highlights may not be able to be shaded smoothly, resulting in banding. In this case, it looks kind of like Harry’s uniform is supposed to be shiny and the highlights are getting displayed wrong. (Of course based on the image, that’s probably not the case, but it was still worth checking the brightness/contrast/etc. settings.)
– Synetech – 2012-02-23T23:39:37.563This thread seems to discuss a somewhat similar problem, but it is mentioned that it cannot be repaired; rather, the solution would be to recalibrate to reduce the effect. Unfortunately, I’m not sure if it would help (or even apply) in your case. – Synetech – 2012-02-23T23:41:36.890
@Synetech Posted an answer based on your advice. – Tyler Faile – 2012-02-29T00:04:11.037