Deep sleep instead of sleep ??

Discussion in 'MacBook Pro' started by Tex-Twil, Dec 20, 2008.

  1. Tex-Twil macrumors 68020

    Tex-Twil

    Joined:
    May 28, 2008
    Location:
    Europe
    #1
    Hi,
    when I close the lid of my unibody MBP while it is on battery, the OS is going to deep sleep.

    Even if there is around 50% battery left and when I open it just after, Leopard went to deep sleep.

    Shouldn't it be in a normal sleep instead ?
     
  2. Tex-Twil thread starter macrumors 68020

    Tex-Twil

    Joined:
    May 28, 2008
    Location:
    Europe
    #2
    btw, here are ny values of pmset:

     
  3. inigel macrumors regular

    inigel

    Joined:
    Mar 14, 2008
    Location:
    Australia
    #3
    What do you mean by deep sleep?
     
  4. macrem macrumors 65816

    macrem

    Joined:
    Mar 11, 2008
    #4
    I had pre-mature deep sleeps once due to a battery that was in bad health. What's your batt Condition in System Profiler > Hardware > Power?
     
  5. bartelby macrumors Core

    Joined:
    Jun 16, 2004
    #5
    Possibly that it'll only wake when it's being powered from the mains.
     
  6. macrem macrumors 65816

    macrem

    Joined:
    Mar 11, 2008
    #6
    Before sleeping, by default recent Apple notebooks prepare for deep sleep (which is why sleep usually takes a few seconds or more) by saving the state of your machine to disk. Deep sleep occurs when your batt level is so low that your system completely powers down. When you plug into a power source and power back up, your machine boots and loads its state saved to disk, as mentioned. AFAIK only Macs running OS X have this smart combination of features. Some people install an app or run a command to mod this behavior but IMO the default is the safest behavior most would be better off sticking to.

    For instance, your notebook falls asleep with an important unsaved document open and then you don't use your laptop for a while (in sleep the battery drains very slowly but drains nonetheless). Then you don't wake it up in time before it reaches the point where the power goes off automatically. Without deep sleep, any unsaved work is lost. With deep sleep, when you power back up it will take you back to your document as it was.
     
  7. Tex-Twil thread starter macrumors 68020

    Tex-Twil

    Joined:
    May 28, 2008
    Location:
    Europe
    #7
    Coconut says 98%
     
  8. Tex-Twil thread starter macrumors 68020

    Tex-Twil

    Joined:
    May 28, 2008
    Location:
    Europe
    #8
    It looks like setting again the hibernatemode variable did the trick:

     

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