Flicker with vertical lines

Discussion in 'MacBook Pro' started by sparkleblue, Jul 22, 2013.

  1. sparkleblue macrumors newbie

    sparkleblue

    Joined:
    Dec 17, 2008
    #1
    Every once in a while my 2008 Macbook Pro will flicker and have vertical lines on the screen. It's been going on for about a week. I'm not sure what to do. Does anyone know why this is happening?
     
  2. gobigorange, Jul 22, 2013
    Last edited: Jul 22, 2013

    gobigorange macrumors member

    Joined:
    Sep 8, 2010
    #2
  3. sparkleblue thread starter macrumors newbie

    sparkleblue

    Joined:
    Dec 17, 2008
    #3
    Here's my info.

    NVIDIA GeForce 9400M:

    Chipset Model: NVIDIA GeForce 9400M
    Type: GPU
    Bus: PCI
    VRAM (Total): 256 MB
    Vendor: NVIDIA (0x10de)
    Device ID: 0x0863
    Revision ID: 0x00b1
    ROM Revision: 3437
    gMux Version: 1.7.3
    Displays:
    Color LCD:
    Display Type: LCD
    Resolution: 1440 x 900
    Pixel Depth: 32-Bit Color (ARGB8888)
    Main Display: Yes
    Mirror: Off
    Online: Yes
    Built-In: Yes

    ----------

    How can I tell if it's unibody or not?
     
  4. gobigorange macrumors member

    Joined:
    Sep 8, 2010
    #4
    You do have a unibody.

    It doesn't have the GPU that I suspected (8600m), but it could still be the GPU.

    Perhaps someone else may have keener insight into your problem.
     
  5. sparkleblue thread starter macrumors newbie

    sparkleblue

    Joined:
    Dec 17, 2008
    #5
    I've had it a long time and I'm upset but not surprised about the problem. I'm unable to go without using the cord for a long period of time. Would it be something with the battery?
     
  6. sparkleblue thread starter macrumors newbie

    sparkleblue

    Joined:
    Dec 17, 2008
    #6
    The lines look like this

    [​IMG]

    Unfortunantly its happening more frequently now.
     
  7. sevoneone macrumors 6502

    Joined:
    May 16, 2010
    #7
    Looks like the GPU :-(, but sometimes stuff like that can be software related. I would try resetting the PRAM (Hold down Command-Option-P-R on boot until you hear the machine chime 3 times), and also lookup how to reset the SMC on the model you have: http://support.apple.com/kb/ht3964

    You could also try reinstalling the OS if all else fails.

    If it is the GPU, you're looking at having to replace the logic board. Which will be ~$500 if done by Apple.

    If you live near an Apple Store and can spare the time for a Genius Bar appointment and can let them keep your Mac for 24 hours, they can run diagnostics on the hardware. Then at least you would now.
     

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