MacBook Pro screen blinks

My new MacBook Pro display screen is blinking or flickering every few minutes now. I've only noticed it when I've switched to the integrated 9400M graphics processor. I don't recall seeing any blinks when using the discrete 9600M GPU. Usually it is only the top half or so of the display that blinks or flickers for a split second. Anyone else having the same problem?

MacBook Pro (Late 2008), Mac OS X (10.5.5), tv, iPhone, iPod Touch, et al

Posted on Nov 28, 2008 5:28 PM

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1,610 replies

Mar 29, 2010 3:29 PM in response to SuperSizeIt

I brought my late 2008 Macbook Pro into the Apple Store last week, described the symptoms (flashing screen, occasional freezes, only when using energy saving mode), and they replaced the logic board under Applecare. I'm sorry to say that the replacement has not fixed my problem. I have since run the test disk (no faults reported) and tried a clean install (still flashes).

Mar 31, 2010 3:16 PM in response to munchnstuf

I have no idea if this has been posted earlier, but I am not in the mood to read through 42 pages of messages. Sorry.

First the problem.
Upper 1/3 - 2/3 of screen flickers black randomly. Even if not a showstopper, it's pretty annoying.

Then the solution ( at least in my case )
Completely reboot the computer, i.e. coldstart.

As it turns out, I use my MBP to play games. In this case WoW.
My powersaving is set on longer battery life, and it has always puzzled me, that despite this setting, WoW runs great, and left back of the computer gets extremely hot, indicating that 3D accelleration is running at full power.
And, when I close WoW down, and goes back to normal desktop operation, the screen often starts to flicker.

In my opinion, this is a problem with the video driver, maybe because some settings aren't fully restored then graphics are switched from 3D back to 2D.
Anyway, a complete coldstart always fixes it.

Apr 1, 2010 7:49 AM in response to munchnstuf

I just got my MBP from the repair, they put a new logic board and so far (one day) no blinking, but who knows (If the issue reappears I'll send it back to them!).
Cost of the operation 540 €, zero for me under apple care... Apple is charging too much for its stuff, they're no niche market anymore, their prices are unacceptable as far as I'm concerned.

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MacBook Pro screen blinks

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