Fan runs during sleep mode?

Discussion in 'MacBook Pro' started by DubLogic19, Mar 29, 2013.

  1. DubLogic19 macrumors member

    Joined:
    Sep 4, 2011
    Location:
    South Carolina
    #1
    I've noticed that when my Mac was in sleep mode when I first woke up today (sleeps all night) that the fan was running some, keyword some. I read up on threads where the fan was constantly running during sleep but this is not my case. It would run for a 10-15 second interval in which the LED light that indicates the computer is sleeping would stay at the brightest setting. When the fan stopped the light would continue its phase of bright to dim. Any ideas as to why this could be happening?
     
  2. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #2
    It appears it may be waking briefly.

    For sleep issues, you may find some useful ideas here:
     
  3. DubLogic19 thread starter macrumors member

    Joined:
    Sep 4, 2011
    Location:
    South Carolina
    #3
    Using Terminal to see why it was waking up it seems to have woken up all throughout the night due to 'RTC' or real time clock, but I don't have any schedules starts or sleeps set up..hm.
     
  4. DubLogic19, Mar 29, 2013
    Last edited: Mar 29, 2013

    DubLogic19 thread starter macrumors member

    Joined:
    Sep 4, 2011
    Location:
    South Carolina
    #5
    I suppose, got any suggestions on what could be causing it?
     
  5. DubLogic19 thread starter macrumors member

    Joined:
    Sep 4, 2011
    Location:
    South Carolina
    #6
    Last login: Sat Mar 23 00:56:27 on console
    Zachary-Carraways-MacBook-Pro:~ zacharycarraway$ syslog |grep -i "Wake reason"
    Sat Mar 23 20:29:01 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = EC.LidOpen
    Sun Mar 24 00:18:34 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = EHC2
    Sun Mar 24 01:16:23 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = EC.LidOpen
    Sun Mar 24 05:12:23 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = EC.LidOpen
    Sun Mar 24 21:25:40 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = EC.LidOpen
    Mon Mar 25 00:51:02 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = EHC2
    Mon Mar 25 03:46:47 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = EHC2
    Mon Mar 25 06:07:54 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = EC.LidOpen
    Mon Mar 25 07:47:19 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = EHC2
    Mon Mar 25 08:05:45 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = EHC2
    Mon Mar 25 08:06:16 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = EC.LidOpen
    Mon Mar 25 15:08:57 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = EC.LidOpen
    Mon Mar 25 19:23:21 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = EHC2
    Mon Mar 25 22:08:47 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = EC.LidOpen
    Tue Mar 26 01:54:30 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = EC.LidOpen
    Tue Mar 26 07:38:52 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = EC.LidOpen
    Tue Mar 26 09:32:39 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = EHC2
    Tue Mar 26 09:54:40 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = EHC2
    Tue Mar 26 12:52:08 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = EHC2
    Wed Mar 27 01:42:57 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = EC.LidOpen
    Wed Mar 27 13:04:59 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = EC.LidOpen
    Thu Mar 28 05:24:55 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = EC.LidOpen
    Thu Mar 28 10:30:05 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = EC.LidOpen
    Thu Mar 28 14:13:03 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = EHC2
    Thu Mar 28 17:46:57 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = EC.LidOpen RTC
    Thu Mar 28 19:52:09 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = EC.LidOpen
    Thu Mar 28 22:05:16 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = RTC
    Thu Mar 28 22:05:39 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = RTC
    Fri Mar 29 00:05:56 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = RTC
    Fri Mar 29 00:06:18 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = RTC
    Fri Mar 29 02:06:31 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = RTC
    Fri Mar 29 02:06:53 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = RTC
    Fri Mar 29 04:07:06 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = RTC
    Fri Mar 29 04:07:28 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = RTC
    Fri Mar 29 06:07:41 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = RTC
    Fri Mar 29 06:08:03 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = RTC
    Fri Mar 29 08:08:16 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = RTC
    Fri Mar 29 08:08:38 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = RTC
    Fri Mar 29 10:08:51 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = RTC
    Fri Mar 29 10:09:13 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = RTC
    Fri Mar 29 12:09:26 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = RTC
    Fri Mar 29 12:09:48 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = RTC
    Fri Mar 29 12:17:19 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = EC.LidOpen
    Fri Mar 29 12:40:30 Zachary-Carraways-MacBook-Pro kernel[0] <Debug>: Wake reason = EHC2
    Zachary-Carraways-MacBook-Pro:~ zacharycarraway$

    Not sure if it will help but that is my terminal log.
     
  6. cubeeggs macrumors member

    Joined:
    Dec 1, 2009
    #7
    I’m currently experiencing a sleep problem with my Mid 2012 13" MacBook Pro. For the past day or two, when I close my MacBook’s lid, the fan will keep running, and the computer won’t actually finish going to sleep, and it gets very warm if I put it in my backpack. The Console logs suggest that the safe sleep image isn’t being written properly, because I keep getting ludicrous entries like this:

    (1:38 is when I woke it up)

    I can mitigate the problem by running “sudo pmset -a hibernatemode 0” to disable safe sleep, but I’d like to resolve this problem so my MacBook can hibernate properly. I feel like it’s probably a software problem, but I’m not certain. I’ve tried resetting the SMC and PRAM, but I haven’t yet tried booting into Safe Mode or from an external hard drive. I think I’m going to try running Disk Utility and verifying/repairing the disk, and running Onyx and clearing out the system caches. Has anyone else experience this problem?

    If anyone knows how to interpret the log, here’s the surrounding context:

     

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