9400m defect in all macbooks?

Discussion in 'MacBook' started by shloosh33, Dec 30, 2009.

  1. shloosh33 macrumors newbie

    Jun 15, 2009
    I have replaced my macbook unibody for the 3rd time now, because im sure
    there is something wrong with those machines.
    The display quality is the worst i'v seen,even when i connect it to an
    external display.( on the internal display it is worse)

    everything looks like in low refresh rate, pixels look "shaking" or flickering.
    i cant work with the computer for more the 40min,then my eyes hurt and i need to rest.
    The flickering is more noticable on grey patterns like the top bar in safari.

    You cant notify something is wrong from start, you have to work with
    this terriable machine for a while....
    i cant return it to apple because it is 9 months old, and it seems that my only option is to sell it and buy the new macbook pro.

    what do you think?

    *sorry for the bad english
    *runnig 10.6.2
  2. mosx macrumors 65816

    Mar 3, 2007
    That sounds like a problem with the display or the adapter.

    I've used Apple's mDP to VGA adapter and the image quality was about as good as VGA can be. Now I use a monoprice mDP to HDMI adapter and the image quality is stellar on my 23.5" display and my HDTV.

    So theres something else going on.
  3. NewMacbookPlz macrumors 68040


    Sep 28, 2008
    Never had a problem with my 10/2008 MacBook Unibody, whether the internal display or hooked up to a VGA/DVI/HDMI monitor/TV....
  4. shloosh33 thread starter macrumors newbie

    Jun 15, 2009

    the first macbook had this problem so they replaced me the logic board.
    after a wekk i notcied the the problem still exist so thery replace me another
    logic board.
    after the 2nd logic board they gave me a whole new macbook and the problem still exist.

    the problem is on the internal and external lcd.

    is there a chance somthing wrong with the charger?
    im using the 3 pin adapter,and not the regular 2 pin maybe this is it?
    maybe the T220 does something to the 9400m?
    maybe my house electricity is wrong?
  5. chill. macrumors 6502

    Sep 1, 2008
    my macbook is 14 months old and i haven't noticed this problem

    maybe you should go to the apple store or look at other people's 9400m laptops and see if you notice the issue

    also, waiting 9 months to do something about it is a pretty long time...
  6. Gumbercules macrumors member

    Jul 16, 2009
    it might be the LED backlight technology, it is known for some people to see it flickering, while others can't. Do a search:)
  7. jbuk macrumors regular

    Jun 8, 2009
    If you're using VGA to connect the external monitor, and a long/cheap cable, then you might see flickering like that. However, it shouldn't occur on the internal display because that is connected digitally.

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