4 Replies Latest reply: Jul 4, 2013 11:23 PM by mrbofus
mrbofus Level 1 Level 1 (5 points)

On my Mid 2011 iMac running OS X 10.8.4, if I go to System Preferences -> Energy Saver, there are "Computer sleep" and "Display sleep" sliders that I can adjust.  On a new Mid 2013 MacBook Air running OS X 10.8.4, there's only a "Display sleep" option under both the Battery and Power Adapter tabs. 

 

Why is there no "Computer sleep" slider?


iMac, OS X Mountain Lion (10.8.4)
  • 2. Re: No "Computer Sleep" option in Mountain Lion on MacBook Air
    mrbofus Level 1 Level 1 (5 points)

    OK, so now that we know why the "Computer sleep" option is gone, is there a way to go back to the old behavior?  Using the command line as the linked article states doesn't seem to solve the problem because that is just for the timer behavior.  Using the pmset commands overrides the computer going to sleep when closing the lid.  It would be nice to have the computer go to sleep when closing the lid.

  • 3. Re: No "Computer Sleep" option in Mountain Lion on MacBook Air
    Linc Davis Level 10 Level 10 (118,025 points)

    It will still sleep when the lid is closed. You should do one of three things:

     

    1. Use the machine as designed.

     

    2. Return it wiithin 14 days of delivery for a full refund.

     

    3. If you want to do advanced configuration, read the manual page for the pmset command carefully until you're sure you understand it. Be prepared to restore from a backup if something unexpected happens.

  • 4. Re: No "Computer Sleep" option in Mountain Lion on MacBook Air
    mrbofus Level 1 Level 1 (5 points)

    Linc Davis wrote:

     

    It will still sleep when the lid is closed. You should do one of three things:

     

    1. Use the machine as designed.

     

    2. Return it wiithin 14 days of delivery for a full refund.

     

    3. If you want to do advanced configuration, read the manual page for the pmset command carefully until you're sure you understand it. Be prepared to restore from a backup if something unexpected happens.

    From the forum page you linked to, it doesn't sound like it does go to sleep immediately upon lid closure if the pmset commands override system preferences.

     

    If Apple is going to change system settings like this without letting us know, they should at least label things properly.  If the computer is going to sleep along with the display, they should label it "Sleep" instead of "Display sleep", since the latter implies the setting is just for the display.