8 Replies Latest reply: Mar 5, 2012 12:15 PM by kevinfromhunt Branched to a new discussion.
Phsoftballgirl Level 1 Level 1 (0 points)
Does anyone know why my MacBook Pro restarts itself all the time? Not while I'm using it, but if I let it idle, when I come back sometimes it has restarted itself. It takes me straight to the login screen (with the screensaver in the background) even after I've already logged in. It shuts all the programs I was running so it's kinda frustrating. Help please? Thanks.

MacBook Pro 15.4-inch, Mac OS X (10.6.6)
  • 1. Re: MacBook Pro restarts itself — why?
    Niel Level 10 Level 10 (242,130 points)
    Check the settings in the Security pane of System Preferences.

    (57191)
  • 2. Re: MacBook Pro restarts itself — why?
    Phsoftballgirl Level 1 Level 1 (0 points)
    I don't see any security settings that would stop my computer from automatically restarting.
  • 3. Re: MacBook Pro restarts itself — why?
    rricer Level 1 Level 1 (15 points)
    Under the Security settings, you might have a setting that tells your computer to log-out after a certain period of time. So you might want to check to see if that is checked off and if it is, after how many minutes it will log you out.
  • 4. Re: MacBook Pro restarts itself — why?
    Phsoftballgirl Level 1 Level 1 (0 points)
    No, I don't have that box checked unfortunately, so that's not causing the problem. I'll just take my laptop to some of my computer nerd friends and see what they can do; thanks anyway.
  • 5. Re: MacBook Pro restarts itself — why?
    sphereboy Level 1 Level 1 (0 points)
    I'm experiencing the same problem over here. MacBook Pro 2.4 GHz Intel Core i5 (Late 2010) model.
  • 6. Re: MacBook Pro restarts itself — why?
    RicAgu Level 1 Level 1 (0 points)

    I ma having the same problem.  Sometime it won;t happen for a few days and then it'll happen three times in a day.

     

    any body get anywhere?

  • 7. Re: MacBook Pro restarts itself — why?
    conniefromnc Level 1 Level 1 (0 points)

    I have a Mackbook Pro - 2.53 GHz Intel Core i5, running OS X. Haven't  touched RAM since I bought it, and Security settings are fine. But this  one will restart (occasionally) after I've shut it down!  And yes, I do shut down properly. Funny thing is, I haven't noticed it  restarting when I also disconnect the power cable after I shut it down.  Why that might make a difference, I certainly don't know. Any ideas  ??????

  • 8. Re: MacBook Pro restarts itself — why?
    kevinfromhunt Level 1 Level 1 (0 points)

    I am definitely not a technician and not a Mac expert because I have just been using a MacBook Pro for just about one year. However, I have noticed a pattern. I have had three irritating problems with my Mac. One is the one discussed in this thread; the occassional restart when I have left my Mac for a few hours. A second was that my fan stayed on and killed my battery when I had closed my lid and it was supposed to have been put it to sleep, and the third was that my Mac comes back from sleep with a gray background when I am using two monitors. The problem in this thread is the most serious because I have lost data from this problem. As I looked for solutions for all three, I found suggestions to reset the PRAM. I know this fixed my problem with the fan continuing to run. However, it is more difficult to determine if this temporarily helps with the other two problems or not because they are more random and less often. However, all three are definitely related to when the Mac goes to sleep incorrectly. I suspect that all three problems may have the same root problem.