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My MacBook Pro falls asleep, always!

1019 Views 26 Replies Latest reply: Jan 30, 2013 7:57 PM by SwankPeRFection RSS
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alwaysalwayssmile Calculating status...
Currently Being Moderated
Jan 28, 2013 1:53 PM

It does in as soon as I start up, log in and randomly when working. I've defaulted the settings and performed SMC and PRAM restarts. Can anyone suggest what else I might try?

MacBook Pro, OS X Mountain Lion (10.8.2)
  • Courcoul Level 6 Level 6 (11,180 points)
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    Jan 28, 2013 2:14 PM (in response to alwaysalwayssmile)

    My grampa used to do that....


    But I digress. Open Console, in Utilities, leave it running and look in All Messages for everything that pops up just prior to the Mac going to sleep. That should help pinpoint what it is experimenting and causing the issue. Cut & paste the messages back here if you need help with the interpretation.

  • Linc Davis Level 10 Level 10 (107,815 points)
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    Jan 28, 2013 6:27 PM (in response to alwaysalwayssmile)

    If you have more than one user account, you must be logged in as an administrator to carry out these instructions.


    Triple-click anywhere in the line below to select it:


    sudo pmset -g log | grep -v UUID | tail -50


    Copy the selected text to the Clipboard (command-C).



    Launch the Terminal application in any of the following ways:


    ☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)


    ☞ In the Finder, select Go Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.


    ☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.


    Paste (command-V) into the Terminal window. You'll be prompted for your login password, which won't be displayed when you type it. You may get a one-time warning not to screw up. You don't need to post the warning. If you don’t have a login password, you’ll need to set one before you can run the command. If you see a message that your username "is not in the sudoers file," then you're not logged in as an administrator.

    The command may take a noticeable amount of time to run. Wait for a new line ending in a dollar sign (“$”) to appear.


    Post any lines of output that appear below what you entered — the text, please, not a screenshot.

  • Linc Davis Level 10 Level 10 (107,815 points)
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    Jan 29, 2013 10:45 AM (in response to alwaysalwayssmile)

    The screen saver? That's not sleep. Please describe exactly the problem you're having, taking nothing for granted.

  • Linc Davis Level 10 Level 10 (107,815 points)
    Currently Being Moderated
    Jan 29, 2013 12:24 PM (in response to alwaysalwayssmile)

    You say Caffeine doesn't prevent the screen saver from starting. That only happens when its icon in the menu bar looks like a full coffee cup. Does it? If not, click the icon and it should become full.

  • oswald6 Calculating status...
    Currently Being Moderated
    Jan 29, 2013 12:31 PM (in response to alwaysalwayssmile)

    sorry i joined de discushion late. seemz uv solved the sleeping issue but 2 avoid the bother of typing ur password every after the screen saver:

    1.go 2 system preferences

    2.then 2 security and privacy

    3.then in general settings uncheck the require password after sleep or screensaver.

    NB: be sure not 2 cut the RED wire, hee hee

  • Linc Davis Level 10 Level 10 (107,815 points)
    Currently Being Moderated
    Jan 29, 2013 12:34 PM (in response to alwaysalwayssmile)

    When the screen saver was turned on, and you were having the problem, and you started Caffeine, and it didn't stop the screen saver from starting, was the coffee cup full? That's what I'm trying to find out.

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