Screen is gray, but everything works fine!

Discussion in 'MacBook' started by KLF, May 31, 2012.

  1. KLF macrumors newbie

    Joined:
    Sep 17, 2009
    #1
    Hi.

    My Late 2008 Macbook 13.3/2.4/CTO with SSD, dropped on the floor.

    After that, the screen is gray, but backlight controls are working.

    The computer boots, and I can fully control it over VNC.
    I can even plug-in an external screen and everything is ok.

    What I've done so far:
    - safe-mode, using shift key: on the top screen there were some red letters saying "safe boot"
    - NVRAM reset: using cmd-opt-p-r I could hear the second chime
    - removed battery and charger for more than 5 min, pressed for some seconds the power button, and then plug battery again
    - installed latest updates for 10.7.4 OSX
    - keyboard back-light, keys, sound, mouse pad, all working fine
    - double checked that screen resolution is native (800 height)

    But... The screen is always gray. I can modify back-light luminance by using keybord, in order to move to max brightness or minimum brightness.

    What can I do next? Open case, remove some screen cables?

    I would appreciate experienced user's opinion.

    TIA
     
  2. ABCellars macrumors newbie

    Joined:
    Apr 8, 2011
    #2
    It does sound like you compromised the connection of the LVDS/video cable or the cable itself has fractured internally where it goes through the hinge. Follow the guides on http://ifixit.com for help with checking the cable connection and/or cable replacement.

    Before taking the system apart to check the connection I would reset the SMC to see if that resolves the problem.
     
  3. KLF thread starter macrumors newbie

    Joined:
    Sep 17, 2009
    #3
    The diagnostic was correct!
    It was the video data cable, but fortunately it was only a little bit loose.

    I disconnected it and connected again, I got my video back.

    Here goes a screenshot to anyone who come to the same problem.

    Thanks for your tip. :)
    IMG_0955.JPG
     

Share This Page