Why am I seeing red dots on my LCD screen?

Posted by mydoghasworms on Super User See other posts from Super User or by mydoghasworms
Published on 2012-04-24T05:54:50Z Indexed on 2012/10/17 23:06 UTC
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monitor

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lcd

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gpu

My laptop is about 2.5 years old. Now I am starting to see red dots on certain shades of colour (mainly dark colours, blues and blacks), and it is not limited to certain pixels, because when you move a window around, the red dots move with it, staying on the certain shades of colour.

Is this a problem with the LCD screen, or is it the GPU? Is there a way to determine this?

It is clearly not a driver issue, because it happens in Linux and Windows, and my Windows setup has not changed prior to the issue starting.

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