27" imac boots to white screen with cursor

Discussion in 'Mac OS X Lion (10.7)' started by c75mitch, Jun 13, 2012.

  1. macrumors newbie

    Joined:
    Jun 13, 2012
    Location:
    Hemel Hempstead, UK
    #1
    Hi all,

    Just looking for a little advise. I have a late 2009 27" iMac 2.8 quad with 8 GB ram and 2TB HDD running Lion 10.7.4

    I was using the Mac at the weekend watching a video in full screen and it hung. I resorted to rebooting it and it just came back to a bright white screen with a movable mouse cursor.

    I have tried all the various resets but it just returned to the same screen. I was able to remote on to the Mac from my PC and drag off the files I needed so it appeared to be running fine although I could not see anything.
    Next I used the recovery tool to check the HDD and repair, but again nothing helped. I then reloaded Lion through the recovery console via the internet but still have the same white screen with a cursor.

    I have attempted to reload the machine with the original SL install disk but cannot get it to boot.

    Lastly I erased the HDD from the recovery console and re-installed Lion for the internet and it is still doing the same!

    FYI, Recovery console gets very slow after running for a few minutes taking minutes for clicks or typing to show on the screen, great when trying to type in an Apple ID and password!

    Any advice or help gratefully received.

    Cheers

    Callum
     
  2. macrumors G5

    Macman45

    Joined:
    Jul 29, 2011
    Location:
    Somewhere Back In The Long Ago
    #2
    Can you run AHT from your original installation media? Sounds like a graphics chip to me, but it's just a guess...
     
  3. thread starter macrumors newbie

    Joined:
    Jun 13, 2012
    Location:
    Hemel Hempstead, UK
    #3
    Thanks for the reply.

    No, I can't run anything from the original disk. Once inserted it spins around for a bit the ejects.

    FYI, graphics look fine in the recovery console but I am guessing that is not using the proper drivers etc.

    Cheers

    Callum
     
  4. macrumors newbie

    Joined:
    Aug 26, 2012
    #4
    Hey c75. I have identical iMac with identical problem. Did you ever solve it? If so, how?
     

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