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White Screen of Death

658 Views 7 Replies Latest reply: Dec 10, 2012 12:23 PM by BDAqua RSS
Pudgy Squirrel Level 1 Level 1 (10 points)
Currently Being Moderated
Dec 1, 2012 4:30 PM

I've woken up countless nights to have my iMac stuck on a white screen, unresponsive multiple nights now. It won't respond and the only way to fix the issue is to do a hard restart. I have no idea what is going on with it. My iMac will wake out of sleep mode to get stuck on this white screen. There are no icons or any inidcators on it. It boots back up fine and just informs me that I had to restart because of an issue. It happened every two weeks before but now is as frequent as every other night.

 

Anyone have any solutions for me? I am desperate! Thank you!

 

iMac (mid 2011)

Version 10.8.2

3.4 GHz Intel Core i7

16 GB DDR3

AMD Radeon HD 2048 MB

More than enough HD space left

iMac (27-inch Mid 2011), OS X Mountain Lion (10.8.2)
  • BDAqua Level 10 Level 10 (114,670 points)
    Currently Being Moderated
    Dec 1, 2012 10:27 PM (in response to Pudgy Squirrel)

    Hello,

     

    Open console in Applications>Utilities, check the system log for the date/time of the last problem  & the Startup right after that for clues.

  • BDAqua Level 10 Level 10 (114,670 points)
    Currently Being Moderated
    Dec 3, 2012 3:39 PM (in response to Pudgy Squirrel)

    Copy & Paste text is far better for logs, but try disconnecting your Ethernet cable for a test.

  • BDAqua Level 10 Level 10 (114,670 points)
    Currently Being Moderated
    Dec 4, 2012 1:22 PM (in response to Pudgy Squirrel)

    Well, it all seems to be pointing at the Graphic card or graphic drivers, but it might be one of those non-apple kexts, this one seems really suspect since it mentions SL/10.6...

     

    com.paceap.kext.pacesupport.snowleopard      5.8

     

    One way to test is to Safe Boot from the HD, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, Test for problem in Safe Mode...

     

    PS. Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive

     

    Reboot, test again.

     

    If it only does it in Regular Boot, then it could be some hardware problem like Video card, (Quartz is turned off in Safe Mode), or Airport, or some USB or Firewire device, or 3rd party add-on, Check System Preferences>Accounts>Login Items window to see if it or something relevant is listed.

     

    Check the System Preferences>Other Row, for 3rd party Pref Panes.

     

    Also look in these if they exist, some are invisible...

     

    /private/var/run/StartupItems

    /Library/StartupItems

    /System/Library/StartupItems

    /System/Library/LaunchDaemons

    /Library/LaunchDaemons

     

  • BDAqua Level 10 Level 10 (114,670 points)
    Currently Being Moderated
    Dec 10, 2012 12:23 PM (in response to Pudgy Squirrel)

    Your welcome, please do let us know.

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