Previous 1 88 89 90 91 92 Next 1,624 Replies Latest reply: Jun 8, 2014 8:00 AM by CT Go to original post Branched to a new discussion.
  • svtdriver Level 1 Level 1

    deleted. offtopic.


    Message was edited by: svtdriver

  • gelki Level 1 Level 1

    What does this have to do with the blinking of the screen, the subject of this topic? Please do not polute this thread with non-related problems.


    If you have another problem, please make a new topic.

  • hollianna Level 1 Level 1

    I had the screen flicker problem on my MacBook Pro late 2008 model. At first it was very infrequent and I hardly noticed it, but the flicker gradually got worse and more frequent. It was happening apparently randomly. At least, I couldn't identify a certain activity or program that was causing it to happen.


    After reading about this issue in the communities, I took it to Apple and tried to explain. They replaced the display. This did not fix the problem, so I switched to using the "better performance" option (9600 GPU), and the flicker never occured under this setting. I was happy with that until my battery completely died 5 months later. I was surpised especially because I usually use the machine on the power supply anyway. Battery should not have been drained.


    I took it back to Apple (I have Apple Care). This time I had made a video of the flicker problem that happens on the 9400 GPU setting and showed it to them. They had it for 2 weeks, replaced the logic board and the battery. I've had it back for 3 days now and been using it every day on the 9400 GPU with no flicker problems. So, a new logic board appears to have fixed the problem. I will report back if there are any further issues.

  • streetside Level 1 Level 1

    My macbook pro unibody late 2008 have a black screen don't boot i can hear the hard drive and fan but nothing on the screen...

  • CT Level 6 Level 6

    Ok! Thanks for sharing!

  • erio Level 1 Level 1

    Agreed. Earlier this month, I had my MBP repaired again. After one week, I haven't seen a single flicker. I think Apple finally figured out what's causing it. Please have your MBP repaired, so they'll know about it. It will only take less than a week.

  • gelki Level 1 Level 1

    Yes, I will bring my laptop in. I do not have AppleCare and I am living in a country where we don't have official Apple stores, only resellers. I think they will be happy to repair my laptop for €500-1000 for a problem a did not create.


    The only thing I do no get; when my MacBook Pro is connected to my Apple Led Cinema I do not have the screen blinking, only when using my build-in 15" Laptopscreen. In both cases the 9400m is used.

  • Slawek Level 1 Level 1

    Here you have the new firmware update for Apple Cinema Display 24-inch. It works for me very well.



    My MBP allowed me to install this update only when I was in single-monitor mode with display only on my ACD (laptops' lid must be closed).

    It is strange, why Apple released this backdoor fix without any official announcement...

  • gelki Level 1 Level 1

    I am sorry, but wat does your firmware update have to do with the screen flickering of the MacBook pro built-in 15" screen? It is totally off-topic.

  • Squinoogle Level 1 Level 1

    Well, my launch-day late 2008 unibody MBP 15" has been 'blinking' since day one. It wasn't much of an issue for me at the time as I was using it 99% of the time in clamshell with an external display. About a year ago I started using it as an actual laptop, which is when it really started to annoy me. I'd work around it my using the 9600m GT when it was plugged into power, but i also had the problem of it locking up when playing full-screen video for extended periods. I lived over 100 miles from the nearest Apple Store, so I had to live with it.


    Now that I live near an Apple Store (two actually ), and my AppleCare still has a month left, I wanted to get it seen to so that I can sell it.


    I went in last week and spoke to a Genius, and he arranged for a logic board replacement. Result, I thought.


    No dice. It still blinks, plus they've managed to kill my AirPort, BT and iSight.


    So, back to the Apple Store I go, after reading this entire thread (yes, really), I don't hold out much hope.

  • Frank Deale Level 1 Level 1

    Please keep us posted to keep the thread alive. My Applecare runs out in February and I have to develop a strategy for this before then.

  • D90_format Level 1 Level 1

    they gave me the mac yesterday with the new logic board, and guess what? the screen still blinks...back to them tomorrow...

  • Squinoogle Level 1 Level 1

    Just got back, they're going to replace the screen and see if theat does the trick.


    Fingers crossed!

  • Loïc35 Level 1 Level 1

    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.

  • felix=username Level 1 Level 1


    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.

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