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Anybody seen this happen before?

769 Views 10 Replies Latest reply: May 4, 2012 5:26 PM by Bryan Williams RSS
Bryan Williams Calculating status...
Currently Being Moderated
May 2, 2012 2:02 PM

My MBP has been acting a little funny lately. Disk utility flagged orphaned blocks a while back, but booting into recovery and disk utility seemd to fix it. However, today, I get this today wierdness.jpg If the pic doesn't work, There are random rows of barcode looking white bars on my desk top, and the apple start menu in the upper left hand corner has no black apple, just 3 vertical bars. Anybody have any ideas?

MacBook Pro (13-inch Late 2011), Mac OS X (10.7.3)
  • Linc Davis Level 10 Level 10 (107,540 points)
    Currently Being Moderated
    May 2, 2012 2:38 PM (in response to Bryan Williams)

    Please read this whole message before doing anything.

     

    This procedure is a test, not a solution. Don’t be disappointed when you find that nothing has changed after you complete it.

     

    Step 1

     

    The purpose of this step is to determine whether the problem is localized to your user account.

     

    Enable guest logins and log in as Guest. For instructions, launch the System Preferences application, select Help from the menu bar, and enter “Set up a guest account” (without the quotes) in the search box.

     

    While logged in as Guest, you won’t have access to any of your personal files or settings. Applications will behave as if you were running them for the first time. Don’t be alarmed by this; it’s normal. If you need any passwords or other personal data in order to complete the test, memorize, print, or write them down before you begin.

     

    Test while logged in as Guest. Same problem(s)?

     

    After testing, log out of the guest account and, in your own account, disable it if you wish. Any files you created in the guest account will be deleted automatically when you log out of it.

     

    Note: If you’ve activated “Find My Mac” or FileVault in Mac OS X 10.7 or later, then you can’t enable the Guest account. Create a new account in which to test, and delete it, including its home folder, after testing.

     

    Step 2

     

    The purpose of this step is to determine whether the problem is caused by third-party system modifications that load automatically at startup or login.

     

    Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards. Boot in safe mode and log in to the account with the problem. The instructions provided by Apple are as follows:

     

    • Be sure your Mac is shut down.
    • Press the power button.
    • Immediately after you hear the startup tone, hold the Shift key. The Shift key should be held as soon as possible after the startup tone, but not before the tone.
    • Release the Shift key when you see the gray Apple icon and the progress indicator (looks like a spinning gear).

     

    Safe mode is much slower to boot and run than normal, and some things won’t work at all, including wireless networking on certain Macs.

     

    The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.

     

    Note: If FileVault is enabled under Mac OS X 10.7 or later, you can’t boot in safe mode.

     

    Test while in safe mode. Same problem(s)?

     

    After testing, reboot as usual (i.e., not in safe mode) and verify that you still have the problem. Post the results of steps 1 and 2.

  • Linc Davis Level 10 Level 10 (107,540 points)
    Currently Being Moderated
    May 4, 2012 7:00 AM (in response to Bryan Williams)

    The AHT is on one of the two DVD's that came with the machine, unless it shipped with Lion. It sounds like you have a failing hard drive, or some other hardware fault. Make a "Genius" appointment at an Apple Store to have the machine tested.

     

    Back up all data on the internal drive(s) before you hand over your computer to anyone. If privacy is a concern, erase the data partition(s) with the option to write zeros (do this only if you know how to restore, and you have at least two independent backups.) Don’t erase the Lion recovery partition, if present.

  • Linc Davis Level 10 Level 10 (107,540 points)
  • Linc Davis Level 10 Level 10 (107,540 points)
    Currently Being Moderated
    May 4, 2012 1:01 PM (in response to Bryan Williams)

    You need an always-on Ethernet or Wi-Fi connection to the Internet to use Recovery. It won’t work with USB or PPPoE modems, or with networks that require any kind of authentication other than a WPA or WPA2 Personal password. Use Ethernet if possible.

  • Linc Davis Level 10 Level 10 (107,540 points)
    Currently Being Moderated
    May 4, 2012 5:16 PM (in response to Bryan Williams)

    Maybe it doesn't work because of a hardware fault. You're not missing much. The AHT is unreliable. The stores use a much more comprehensive test suite, Apple Service Diagnostics, and they probably have secret test equipment hidden away in the back.

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