After leaving for a while the laptop without use, turned and found him apparently off. But if I had set it looked very dark content, that is, could see the desktop and the two or three windows had been left open. As I turned it off and turned it on but the problem was still there. The laptop works perfectly with another screen (I'm using now) but it's as if he had been " turned off the light "on their own and do not know what can be treated. And logically I've tried to tinker with the basics to see if it fixes it, but nothing. Can anyone help
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