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  1. #1

    Member Since
    Jun 11, 2009
    black screen while surfing
    while surfing safari i have noticed a strange problem.
    My macbook screen goes black for half a sec and comes back.
    It doesnt happen usually, maybe 2-3 times a week.
    It also doesnt goes to sleep,it just blink for a sec.

    i think it started when i decided surfing with safari and not firefox..

    if its related to software i dont mind, but im afraid its hardware problem.

    apple hardware test(full) says everything is fine, and also geekbench and xbench.

    thx! sorry for the bad english...

    macbook unibody 2.4ghz\4gb\9400m

  2. #2

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Keller, Texas
    2017 27" iMac, 10.5" iPad Pro, iPhone 6s+, iPhone 7+, Numerous iPods, High Sierra
    Try resetting the System Management Controller (SMC). See the following Apple KB article: Link If that doesn't work, give Apple support a call as it could be logic board related.


  3. #3

    Member Since
    Jun 11, 2009
    apple did their "apple test" (something that took 6 hours)on my macbook 2 months ago and everting was fine, so i dont think its the logic board.

    is there any chance its related to the 10.5.7 update?
    cause i have never seen those black screens before the update, and my macbook is only 3 months old....

    anyway i installed the combo 10.5.7 again(last time i updated from the "software update")

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