ML freeze problem when using Clam mode and sleep

Discussion in 'OS X Mountain Lion (10.8)' started by keevill, Jul 28, 2012.

  1. macrumors member

    Nov 7, 2010
    Here's my problem since upgrading ( not clean install ) on MBA 120HDD 4GB .
    I use my machine connected to an external monitor in Clam Mode with Magic Mouse and BT keyboard.
    When I sleep the machine and return after about 15 mins, the programs are frozen although the mouse and keyboard move.
    Opening the MBA , the screen remains black and the trackpad & keyboard are unresponsive.
    I have to hold the power button down for a few seconds and let the system boot up.
    Then it works.

    Normally I do not do upgrades until a few months elapse for the bugs to be found but I decided to do it for the airplay mirroring and also for a 'bug' in iPhoto where the keyboard shortcut for batch rename no longer works but the upgrade to ML hasn't helped.

    Any ideas pls before I roll back to 10.7xx.

  2. macrumors 68020

    Oct 12, 2006
    Disconnecting the display has no effect on this "Freeze"?
  3. thread starter macrumors member

    Nov 7, 2010
    This, I have not tried, but, I will, and post back.
  4. thread starter macrumors member

    Nov 7, 2010
    I managed to achieve a 'freeze' when just working on the machine
    ( recovering from sleep worked just fine when trying to get to the problem ) and turning off the external monitor made no difference. The screen was just black.
    In this mode, I was unable to 'see' anything as the external monitor was disconnected and even though I suspect the Keyboard and Magic mouse would react to actions, the machine most likely , would not.

    Now I notice another 'wrinkle' in ML. The reminders app opens but it is a deep blue colour merging into the blue screen background wallpaper.

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