My mac displays weird blue bars!!

Discussion in 'macOS' started by zantaff, Mar 5, 2013.

  1. zantaff, Mar 5, 2013
    Last edited: Mar 5, 2013

    zantaff macrumors newbie

    Joined:
    Apr 28, 2011
    #1
    All of a sudden, my mac started displaying light blue bars in white regions. I have no idea what may have caused this. I don't think the display just broke, because when you run the something, like the mouse or a window over the blue bars, it displays correctly in the window's "shadow".

    Look at the pictures to see what I'm talking about.
    I couldn't use screenshots, because when viewed on another computer, the image looks fine.
    That's why the images are taken with a camera.
    Picture 1
    Picture 2
    Picture 3
    Picture 4

    Any help would be great!
    Thanks!

    Macbook Pro
    OS X 10.6.8
     
  2. ppcg4mac macrumors 6502

    ppcg4mac

    Joined:
    Feb 13, 2012
    Location:
    Northwest Kansas
    #2
    my guess is the video card, but i could be wrong
     
  3. zantaff thread starter macrumors newbie

    Joined:
    Apr 28, 2011
    #3
    I also tried resetting the PRAM and SMC, but to no avail.
     
  4. Quad5Ny macrumors 6502a

    Quad5Ny

    Joined:
    Sep 13, 2009
    Location:
    New York, USA
    #4
    What are the display settings in System Preferences? Did you turn the contrast up using the keyboard shortcuts?

    If you boot off of the OS X recovery DVD that came with your Mac, do whites look like that as well?
     
  5. madsci954 macrumors 68030

    Joined:
    Oct 14, 2011
    Location:
    Ohio
    #5
    That would be be my first guess as well.
     
  6. theferret macrumors newbie

    Joined:
    Mar 29, 2011
    Location:
    UK
    #6
    Can you connect your macbook pro to an external monitor? What happens then?

    That can help diagnose what the problem is - video card, screen etc.
     
  7. zantaff thread starter macrumors newbie

    Joined:
    Apr 28, 2011
    #7
    Nothing came up in the Diagnostics....

    I started messing with the LCD color calibration, and I set the target white point to just a little higher than native. This took all the blue away, so I think I'll stick with that for now.
    After this, I connected to an external monitor, and it seemed to work fine.

    HMMMM
     
  8. gregorsamsa macrumors 6502a

    Joined:
    Apr 6, 2006
    Location:
    (Metamorphosing near) Staffs, 51st State.
    #8
    I had this problem with a 2008 iMac. It started after about 2 & 1/2 years of problem-free ownership. Initially it was an on-&-off thing. Whenever the iMac got too warm, those exact same blue lines would appear. Diagnostics also told me nothing.

    Most regrettably, for me the problem never went away & eventually my iMac stopped working (after 2yrs 10 months). If you haven't already done so, back up all of your work immediately.

    I had no Apple Care, so I ended up selling my iMac to a Mac engineer on eBay & bought a new 2011 Mini.
     

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