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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

Sep 30, 2011 6:25 AM in response to Squinoogle

Replacing the screen won't change a **** thing. I have already had my mother board changed twice and the last time they also changed the whole screen (not only the matrix). It doesn't change anything. I'm pretty sure this is a battery issue. I got to have it fixed before the Apple Care ends. Keep posting about your experienceon this issue. I will.

Sep 30, 2011 9:04 AM in response to munchnstuf

Hi,

Just wanted to tell you all that I found a fix that, so far, seems to work :


just re-install os x !


I've had the same problem (intermittent black flashes on top half of the screen - MBP late 2008 - with nvidia 9400M) and was pretty desperate about it after trying everything. But for some reason, I think the problem appeared just after installing snow leopard. So I just re-installed snow leopard from the DVD : problem gone !

After the updates up to 10.6.8, some graphic glitches appear again, but they're not "black", and they seem to happen only with flash videos on safari.

Hope that helped some of you.

Sep 30, 2011 3:29 PM in response to Loïc35

It's been a fews days now, and no more screen blinks. It used to be one blink every 5 minutes or so before…

I suspect the problem happened after too many "bad" updates ; I had never done any full "clean install" since purchase.


You can also note that my battery shows "to be replaced", maybe there's a link with that as well…


Do people have the same problem when booting on windows ? If not, that would look like a proof that it's software-related…

Oct 2, 2011 4:12 PM in response to felix=username

I'm a fellow customer who has purchased a 2008 Macbook Pro with the screen blinking problem. Actually, the trackpad started "sticking" as well after sometime. Reading this thread, I am surprised that Apple hasn't been able to resolve this problem in a consistent manner (some people get the fix, some don't, some have to spend weeks waiting for repairs.)


Later, I purchased two other Macs (a 2009 Mac Mini and a 2011 Macbook Air.) I just wanted to say that both of them haven't had problems such as this one and have been nothing but reliable. I drag my Air with me everywhere. So this particular blinking issue seems like a horrible fluke and is very unlike Apple. I'm just sorry for everyone who has to deal with it and hope Apple figures out the solution soon, since the reason to buy Apple (vs. a generic PC) is basically for better customer support and quality product that lasts many years.


(I have AppleCare but actually haven't tried bringing in the 2008 MBP for diagnosis yet. I use MBP with an external monitor and always plugged in, so the 9600 graphics card hasn't affected me too much.)

Oct 13, 2011 9:40 AM in response to Squinoogle

The short version: they didn't fix the problem with my MBP 😉



The long version: they didn't need to 😀


After having the logic board replaced, I was left with a still blinking machine that now didn't have BT, WiFi or iSight. Back to the Apple Store it goes to have the screen replaced and the bits they broke seen to.


I got a call from the Apple Store a couple of days later basically saying that, because of the cost involved in replacing the screen/clamshell and the bits that they broke when they replaced the logic board, they wanted to just replace the whole machine for me - and that because it was originally a CTO they'd have to order it in.


Awesome.


Yesterday I got a call saying that my replacement MBP was ready to be collected.


So, today, I go in expecting them to have found me a 2008 MBP as replacement, and what do they plonk down on the table? A brand spanking new 2011 15" MBP!


I was still in shock as a walked out with it, I really didn't expect a current model as replacement.


Thank you AppleCare.



Lets just hope it doesn't blink 😉

MacBook Pro screen blinks

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