MBP Will Not Sleep with Lid Open

Discussion in 'OS X Mountain Lion (10.8)' started by cazhpfan, Dec 11, 2013.

  1. cazhpfan macrumors newbie

    Joined:
    Jan 21, 2013
    #1
    Hi All,

    I have a mid-2012 unibody 13" MBP that refuses to sleep with the lid open.

    I have recently downgraded from Mavericks (too many bugs) by performing a complete format (zero out) and clean install of 10.8.3

    The comp sleeps instantly when the lid is closed.

    pmset -g assertions reveals the following:

    Assertion status system-wide:
    PreventUserIdleDisplaySleep 0
    PreventSystemSleep 0
    PreventUserIdleSystemSleep 0
    ExternalMedia 0
    UserIsActive 0
    ApplePushServiceTask 0
    BackgroundTask 0

    Kernel Assertions: None


    pmset -g custom:

    Battery Power:
    lidwake 1
    autopoweroff 1
    autopoweroffdelay 14400
    standbydelay 4200
    standby 0
    ttyskeepawake 1
    hibernatemode 3
    hibernatefile /var/vm/sleepimage
    displaysleep 2
    sleep 5
    acwake 0
    halfdim 1
    sms 1
    lessbright 1
    disksleep 10
    AC Power:
    lidwake 1
    autopoweroff 1
    autopoweroffdelay 14400
    standbydelay 4200
    standby 0
    ttyskeepawake 1
    hibernatemode 3
    hibernatefile /var/vm/sleepimage
    womp 0
    displaysleep 5
    networkoversleep 0
    sleep 5
    acwake 0
    halfdim 1
    sms 1
    disksleep 10

    I have attempted most fixes I could find on the internet. Nothing seems to work.

    Any help is very much appreciated.

    Thank you ahead of time! ;)
     
  2. cazhpfan thread starter macrumors newbie

    Joined:
    Jan 21, 2013
    #2
    Quick update: Pressing the "Sleep" button in the Apple menu sends the computer to sleep instantly.

    The Mac still won't sleep when turning the display with Control-Shift-Eject or when the display is allowed to go out via its energy saver preferences.
     
  3. cazhpfan thread starter macrumors newbie

    Joined:
    Jan 21, 2013
    #4
    I have gone through all of these links (plus many more) and none of them seem to help.

    No gfxcardstatus was ever installed. This problem is occurring on a cleanly-installed 10.8.3 system with Firefox as the only third-party app.

    Thank you!
     
  4. Bruno09 macrumors 68020

    Joined:
    Aug 24, 2013
    Location:
    Far from here
    #5
    Control-Shift-Eject is not a shortcut for sleep.

    Cmd-Option-Eject is the right one for sleep.
     
  5. cazhpfan thread starter macrumors newbie

    Joined:
    Jan 21, 2013
    #6
    Yes, that's true.

    However, if you use Control-Shift-Eject, and then wait for a minute, the macbook goes to sleep automatically.

    If I used the same keyboard shortcut, the MBP would idle for hours without going to sleep.

    I resolved the problem by downloading a clean image of 10.8.5, placing it on a thumb-drive, formatting, and re-installing.
     

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