MBP not sleeping under 10.5 or 10.6

Discussion in 'macOS' started by stoutdog101, Sep 27, 2009.

  1. stoutdog101 macrumors member

    Joined:
    Jun 10, 2008
    #1
    Hi all,

    Ever since I reinstalled 10.5 last January, my MBP (early 2008) refuses to sleep automatically - it works fine if I direct it to sleep manually or close the lid. I had hoped that 10.6 would fix this issue, but it has not. All the settings are correct under System Preferences, so I have no clue what is going on.

    Any suggestions? Thanks.
     
  2. GoCubsGo macrumors Nehalem

    GoCubsGo

    Joined:
    Feb 19, 2005
  3. stoutdog101 thread starter macrumors member

    Joined:
    Jun 10, 2008
    #3
    Jessica,

    Thank you. I followed Apple's instructions and nothing happened... my MBP still won't sleep. Am I supposed to notice anything different in the energy saver preferences, as all my settings were the same as before. How do I know the SMC reset actually took?
     
  4. SMC1991 macrumors member

    Joined:
    Sep 18, 2009
    #4
    Try unchecking the option to "Put Hard Disks to Sleep When Possible".
     
  5. aristobrat macrumors G4

    Joined:
    Oct 14, 2005
    #5
    At one time (for me anyway), if Firefox was running, my system wouldn't sleep on its own. My guess is that it was one of the extensions I had loaded. The problem eventually fixed itself.

    If no programs are running, will it sleep? That'd at least help isolate if it's an OS/hardware issue vs. a non-sleepy app. :)
     
  6. Graig macrumors 6502

    Graig

    Joined:
    Aug 23, 2009
    Location:
    Vancouver, BC
    #6
    I had this same problem with my iMac with 10.6.1 installed. The only way I was able to fix it was to reinstall.
     

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