MacBook waking from sleep for no reason

Discussion in 'MacBook' started by leekohler, May 28, 2009.

  1. leekohler macrumors G5

    leekohler

    Joined:
    Dec 22, 2004
    Location:
    Chicago, Illinois
    #1
    Ugh! I have a 2.4 Penryn black MacBook. It's been waking up on it's own, overheating and shutting down since I installed 10.5.7. This happened when I first got it, and I took it to Apple. At that time, seems the RAM wasn't seated properly. It hasn't been a problem again until now. Yesterday, it did it twice. The RAM seems to be seated properly. Is there a firmware update or something I'm missing?
     
  2. Eidorian macrumors Penryn

    Eidorian

    Joined:
    Mar 23, 2005
    Location:
    Indianapolis
    #2
    Waking from sleep while the lid is down with no external input devices?
     
  3. leekohler thread starter macrumors G5

    leekohler

    Joined:
    Dec 22, 2004
    Location:
    Chicago, Illinois
    #3
    Lid down, no externals plugged in and bluetooth off.
     
  4. Eidorian macrumors Penryn

    Eidorian

    Joined:
    Mar 23, 2005
    Location:
    Indianapolis
    #4
    Welcome to my world. Does the display turn on at all when it wakes up? I haven't been able to track down a cause for why it just wants to wake up.

    It has ruined my uptime quite a few times already.
     
  5. leekohler thread starter macrumors G5

    leekohler

    Joined:
    Dec 22, 2004
    Location:
    Chicago, Illinois
    #5
    No- the screen doesn't turn on that I've noticed. I woke up in the middle of the night last night to hear it's fans going like crazy and it's sleep light on solid. I had to open the lid and do a hard shutdown (screen did not come on). That was the second time it did it yesterday. This has not happened since I first bought it over a year ago. I'm thinking 10.5.7 has something to do with it.
     
  6. Eidorian macrumors Penryn

    Eidorian

    Joined:
    Mar 23, 2005
    Location:
    Indianapolis
    #6
    It does seem that it happens more often under 10.5.7 for me as well on my Late 2007 model.

    I don't really have any advice though.
     
  7. leekohler thread starter macrumors G5

    leekohler

    Joined:
    Dec 22, 2004
    Location:
    Chicago, Illinois
    #7
    Apparently no one else does either. I wonder if more people are having this problem.
     
  8. Guy Incognito macrumors regular

    Joined:
    Oct 15, 2006
    #8
    I think it's probably a hardware problem, not a software problem. The same thing happened to me with my Rev. A blackbook. Apple replaced the bluetooth module and sleep switch first. When that didn't fix the problem, they replaced the logic board.
     
  9. leekohler thread starter macrumors G5

    leekohler

    Joined:
    Dec 22, 2004
    Location:
    Chicago, Illinois
    #9
    I don't know. It seems to only be happening now after the 10.5.7 update. And I have bluetooth off all the time.
     
  10. Eidorian macrumors Penryn

    Eidorian

    Joined:
    Mar 23, 2005
    Location:
    Indianapolis
    #10
    I have my Bluetooth off as well and no devices attached via the USB ports. It'll still wake up when closed and force you to hard reboot.
     
  11. zephead macrumors 68000

    zephead

    Joined:
    Apr 27, 2006
    Location:
    in your pants
    #11
    I've occasionally been having this problem too, although it's been with 10.5.6. Sometimes I'd wake up in the morning and open the lid, just to find that it's already running. The fans were running low, even though the computer seemed to be kinda hot, and the screen stayed blank no matter what I pushed. The Caps and Num Locks wouldn't even turn on/off. So I'd just have to hard restart it and everything went back to normal.

    I went in the Console to see what the wake reason was, and it said "Wake Reason: USB7 USB4". I don't know how USB could wake the computer even if I had nothing plugged in but the power adapter. :confused:
     
  12. Eidorian macrumors Penryn

    Eidorian

    Joined:
    Mar 23, 2005
    Location:
    Indianapolis
    #12
    Yeah I found my machine abnormally warm as well when opening it up. The fan was just humming along on low and I wouldn't get anything in the logs besides the mention of "you turned the computer on at this time".

    Great help system.log!
     
  13. Wicker macrumors regular

    Joined:
    May 11, 2008
    Location:
    Newcastle upon Tyne, UK
    #13
    The same thing happened to me recently and I also attribute it to 10.5.7 (as it hadn't happened before). I started a thread on it (http://forums.macrumors.com/showthread.php?t=701671) but nobody seemed to have any suggestions... I'd really like to know what's going on! It hasn't been a big problem for me (only that once) but I'd like to be able to trust my MacBook to sleep and wake up!
     
  14. leekohler thread starter macrumors G5

    leekohler

    Joined:
    Dec 22, 2004
    Location:
    Chicago, Illinois
    #14
    Seems there are more people having this problem. I wonder if it's even more widespread?
     
  15. Guy Incognito macrumors regular

    Joined:
    Oct 15, 2006
    #15
    This is the same sort of problem I had. I believe that the bluetooth module and sleep switch are both connected to the logic board via an internal USB controller. The problem likely has to do with a hardware fault in one or more of these components.
     
  16. leekohler thread starter macrumors G5

    leekohler

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    Dec 22, 2004
    Location:
    Chicago, Illinois
    #16
    But why is it suddenly happening to most of us who updated to 10.5.7?
     
  17. Guy Incognito macrumors regular

    Joined:
    Oct 15, 2006
    #17
    It may well be coincidence. I had the problem with 10.5.6 (maybe 10.5.5 too), and so do other contributors to this thread. Or you may be experiencing a different problem with the same symptoms. At any rate, I can attest that the intermittent wake from sleep/bluetooth connectivity problem accompanied by the USB error in the logs was confirmed by Apple as a hardware problem, and was (finally) fixed when the logic board was replaced.
     
  18. leekohler thread starter macrumors G5

    leekohler

    Joined:
    Dec 22, 2004
    Location:
    Chicago, Illinois
    #18
    Hmm...I'll have to check mine when it does it next time.

    EDIT- went through the log and only found this: Wake reason= EHC1 EHC2 UHC4. There is no other wake info for yesterday.
     
  19. Eidorian macrumors Penryn

    Eidorian

    Joined:
    Mar 23, 2005
    Location:
    Indianapolis
    #19
    I've had it happen before under earlier versions of 10.5. It just happens more often under 10.5.7.

    I don't get anything written to the logs though and my machine is the Late 2007 (Merom) White Macbook.
     
  20. leekohler thread starter macrumors G5

    leekohler

    Joined:
    Dec 22, 2004
    Location:
    Chicago, Illinois
    #20
    Now that's weird. I had it happen when I first bought mine. Then for the longest time nothing. Now after 10.5.7, it's happening a lot. I have nothing in my log about it either, at least not the USB issue that was mentioned before.
     
  21. Guy Incognito macrumors regular

    Joined:
    Oct 15, 2006
    #21
    My problem was intermittent as well. After Apple replaced the sleep switch and bluetooth module, the problem went away for about six weeks. Then it came back. The fact that you're not seeing the USB error in the logs suggests that we may be talking about different problems with similar symptoms, though.
     
  22. leekohler thread starter macrumors G5

    leekohler

    Joined:
    Dec 22, 2004
    Location:
    Chicago, Illinois
    #22
    Yeah- that error is not in the log at all. And I haven't had this happen for over a year.
     
  23. yellow Moderator emeritus

    yellow

    Joined:
    Oct 21, 2003
    Location:
    Portland, OR
    #23
    Try removing /var/vm/sleepimage

    A new one will be created when you put the Mac to sleep again.
    That worked for me (so far).
     
  24. Eidorian macrumors Penryn

    Eidorian

    Joined:
    Mar 23, 2005
    Location:
    Indianapolis
    #24
    I feel like I'm being overly paranoid.

    Code:
    -rw------T   1 root  wheel  4294967296 May 29 16:03 sleepimage
    
     
  25. yellow Moderator emeritus

    yellow

    Joined:
    Oct 21, 2003
    Location:
    Portland, OR
    #25
    You are... new one gets created automatically when you sleep again. You don't hurt anything by deleting the file.
     

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