Skip navigation

Why does MBP go to sleep when processes are unfinished?

214 Views 3 Replies Latest reply: Sep 9, 2012 2:38 AM by mrbofus RSS
Jeffrey Shaw Calculating status...
Currently Being Moderated
Sep 1, 2012 2:55 PM

I have a MBP Retina with Mountain Lion 10.8.1. I am finding that Mac goes to sleep even when it is mid-task. For example, I have a video encode which is going to take a couple of hours so I think it is OK to leave the process running and go off out, but I come back several hours later to find that the machine has gone to sleep without completing the task - 90 minutes still to go. This is happening all the time. I could set Energy Preferences to sleep 'never', but where then is the concept of sleeping? I have never seen this behavious before - surely we expect the computer to only sleep when it is IDLE?

MacBook Pro with Retina display, OS X Mountain Lion (10.8.1), Thunderbolt Display


More Like This

  • Retrieving data ...

Bookmarked By (0)


  • This solved my question - 10 points
  • This helped me - 5 points
This site contains user submitted content, comments and opinions and is for informational purposes only. Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site. All postings and use of the content on this site are subject to the Apple Support Communities Terms of Use.