The Mountain Lion doesn't sleep tonight

Discussion in 'OS X Mountain Lion (10.8)' started by Dr. McKay, Sep 15, 2012.

  1. macrumors 6502a

    Joined:
    Jan 20, 2010
    Location:
    Belgium, Europe
    #1
    Since I upgraded to ML from SL on my early 2008 imac, my mac never goes to sleep, not the display, nor the mac.
    Changing energy settings does't change a thing.

    Never had any issues like this in SL.
    Anyone else experiencing these problems on this type of imac ?
     
  2. macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
  3. thread starter macrumors 6502a

    Joined:
    Jan 20, 2010
    Location:
    Belgium, Europe
    #3
    Thx, I'll have a look.
    Still, even when I am downloading files, running iTunes, indexing or whatever, at least I should be able to put the display to sleep...
     
  4. macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #4
    Did you try Control-Shift-Eject?
     
  5. thread starter macrumors 6502a

    Joined:
    Jan 20, 2010
    Location:
    Belgium, Europe
    #5
    That works (thx by the way, didn't know about that one), but it's not normal I should have to do it manually. Did work in SL, so must be ML-related...
     
  6. macrumors P6

    Weaselboy

    Joined:
    Jan 23, 2005
    #6
    You might try a SMC reset.

    Also try the below command in Terminal. It will show running processes that are keeping your Mac awake. Normal processes will be followed by 0 and those keeping the machine awake will have a 1.

    Code:
    pmset -g assertions
     
  7. thread starter macrumors 6502a

    Joined:
    Jan 20, 2010
    Location:
    Belgium, Europe
    #7
    @Weaselboy : ran the command in terminal, all 0...

    As for the SMC reset, I shut down AND pull the plug from the mains every day...
     
  8. macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #8
    Why?
     
  9. thread starter macrumors 6502a

    Joined:
    Jan 20, 2010
    Location:
    Belgium, Europe
    #9
    Peace of mind ?
     
  10. macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #10
    It's perfectly safe to leave your Mac on for many months at a time. Many users only use sleep mode, restarting only when a Software Update requires it. There is no need or benefit to shutting down every night, other than saving a few pennies worth of electricity.
     

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