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It happens only when the computer is plugged on a power source. The situation on battery is not the same, knowing the computer goes to sleep.

When I close the lid, the computer behaves correctly:

  • Screen turns off
  • Does not go to sleep (front light stays on and does not flash)
  • Still can hear fans

But when I open the lid:

  • The screen turns on...
  • ...and turn off about 2 seconds after

I can see my desktop background, and the login window for 2s, and after that the screen becomes black (actually it turns off, it's not backlighted black).

The little trick I found is to reduce the luminosity thanks to the F1 key, and then increase it again to come back to maximum luminosity.

Computer specs :
- Macbook Pro 15" bought 2 months ago
- It came with OS X Lion already installed
- I choose the screen resolution option (don't know if it matters)

It's not really handicapping since I found this little trick, but it's a little bit annoying to have to do that every time I open my Macbook.

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I'd be taking it back to have it fixed under warranty. 2 months old you shouldn't be having problems like this. – Joe Taylor Sep 15 '11 at 9:39
Warranty ? Don't you think there is a way to solve it by by own ? Even by reinstalling OS X Lion or something ? – Nonepse Sep 15 '11 at 11:21
Possibly. But if its when you open the lid it sounds like a hardware driven event. I would back up your windows install, re-install Lion and see what happens then. If the problem persists then get down to the genius bar or whatever they call it. – Joe Taylor Sep 15 '11 at 21:18
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