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Old 05-04-2011, 12:00 AM   #1 (permalink)
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Default dead pixels or screen tattoo?

Some kids at school do this thing were when they are done it leaves a perfect Circle of what looks like dead pixels on the monitor. If you switch users it stays but if you reboot it dissappears.. any idea of what this is called? Or how to do it?
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Old 05-04-2011, 02:55 AM   #2 (permalink)
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Default Re: dead pixels or screen tattoo?

You are talking about an LCD screen right? If so, I don't know of anything that can cause that, but on a CRT they could be opening something up that sort of burns the image into the screen.
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Old 05-04-2011, 09:19 AM   #3 (permalink)
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Default Re: dead pixels or screen tattoo?

Yes LCD.. what's a crt? It basically makes a hollow black ring with a small x in the middle.. but I have seen one that looks like weeds too
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Old 05-04-2011, 09:55 AM   #4 (permalink)
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Default Re: dead pixels or screen tattoo?

CRT is the big fat monitors.


I'm not sure either. I think it might be a gimmick with the graphic card.
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Old 05-04-2011, 12:16 PM   #5 (permalink)
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Default Re: dead pixels or screen tattoo?

Well thanks for the input! Let me know if you hear about anything that might be doing it
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Old 05-04-2011, 03:20 PM   #6 (permalink)
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Default Re: dead pixels or screen tattoo?

I believe that if you push hard enough on a LCD screen without causing permanent damage, you leave a dark, coudy/ink look to the screen. I believe that they may simply be pushing on the screen.
You can try it yourself, but be careful as it's not hard to cause permanent damage.
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Old 05-04-2011, 05:22 PM   #7 (permalink)
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Default Re: dead pixels or screen tattoo?

I just did it on my screen, nothing remained behind o.0

Why don't you just watch the students? o.0
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Old 05-05-2011, 12:44 AM   #8 (permalink)
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Default Re: dead pixels or screen tattoo?

They are in the class before me. It doesn't look like someone pushed it though.. it looks like a simple computer gererated circle.. with a small x in the center. Its very weird no one knows what it is.
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Old 05-05-2011, 01:14 AM   #9 (permalink)
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Default Re: dead pixels or screen tattoo?

Someone does, and since you are a student, even if we did, we couldn't tell you as it would be a hassle for the administrators.
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Old 05-05-2011, 09:25 AM   #10 (permalink)
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Default Re: dead pixels or screen tattoo?

I'm trying to help my prefessors. They want to put a stop to it asap.. because there's literally no info about it
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