MBP A1278 - Display problem

Discussion in 'MacBook Pro' started by Eldoctor62, Jan 22, 2013.

  1. Eldoctor62 macrumors newbie

    Joined:
    Jan 22, 2013
    #1
    [​IMG]


    Hi all,
    I have a macbook pro A1278.
    Recently my display does not work ...
    It flash / jerk / freeze

    It is offset to the left and 2 cm black lines cross the screen from bottom to top.

    I disassembled and cleaned my motherboard but nothing happens ...

    It should not be serious, but I can't find
     
  2. justperry macrumors 604

    justperry

    Joined:
    Aug 10, 2007
    Location:
    In the core of a black hole.
    #2
    Run Apple Hardware Test and see if it shows any errors.

    Intel-based Macs: Using Apple Hardware Test

    You might have GPU Hardware issues.

    Edit: You say A1278 but there are more MBP's from 2009 until 2012, so which is it.
     
  3. Eldoctor62 thread starter macrumors newbie

    Joined:
    Jan 22, 2013
    #3
    ok sorry, so it's a Mid-2009 13" - MB990LL/A - MacBookPro5,5 - A1278 - 2326*

    I'll do a hardware test and give back the result
     
  4. justperry macrumors 604

    justperry

    Joined:
    Aug 10, 2007
    Location:
    In the core of a black hole.
    #4
    If you have a monitor somewhere and this monitor is capable to connect to the MBP then have a go and try this as well, if the external display is OK then the GPU is most likely OK but then the internal display is having problems, like a bad connector or so.
     
  5. Eldoctor62 thread starter macrumors newbie

    Joined:
    Jan 22, 2013
    #5
    ok, I have a external monitor. But I have no adapter ...
    I'll invest ...
    I come back to you when I get results
     
  6. Eldoctor62 thread starter macrumors newbie

    Joined:
    Jan 22, 2013
    #6
    Ok, so I have a proper display on the second.
    I disassembled and cleaned the plug connection to alcohol and everything is back in order. :cool:
    Thank you ...
     
  7. justperry macrumors 604

    justperry

    Joined:
    Aug 10, 2007
    Location:
    In the core of a black hole.
    #7
    :D
    Probably some crap inside or just bad connection.

    Happy for you it works now.
     
  8. Brian Y macrumors 68040

    Joined:
    Oct 21, 2012
    #8
    For the future - there's a nearly foolproof way of determining the problem with display issues:

    1) If it occurs on an external display, it's the graphics card, otherwise:
    2) If the pattern or error changes or flickers when moving the lid, it's the LVDS cable/connection
    3) Otherwise it's the LCD

    :p
     

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