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  1. #1
    Macbook either will not sleep, or wakes up.

    Member Since
    May 31, 2011
    Posts
    19
    Specs:
    macBook Pro 13 inch Retina 2.4 GHZ Intel i5 with Mavericks
    Macbook either will not sleep, or wakes up.
    I have had my macBook for a long time now and it has suffered from this problem since it was new. I did have the system board replaced under warranty, but the problem persisted.

    It was only when I was viewing system logs in pursuit of another difficulty I have "Browsers use 100% CPU and computer runs hot" which you can find under my name, that I realised there was a similarity in the log report when the system refused to sleep or woke up. The log in this instance is : Jun 19 18:51:19 macbooks-computer kernel[0]: System Wake Jun 19 18:51:19 macbooks-computer kernel[0]: IOUSBWorkLoop::closeGate - interrupt Thread being held offUSB caused wake event (EHCI)

    Now I do not understand what these logs are telling me, except that USB seems to be involved. I did carry out a full hardware check today, and everything was said to be working properly.
    Can anyone help me, please?

  2. #2
    Macbook either will not sleep, or wakes up.
    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
    Posts
    45,277
    Specs:
    27" iMac i5, 3.2 GHz, iPad 3, iPhone 5c, iPhone 6+, 3 iPods, Yosemite
    Are there any devices attached to the MacBook through the USB ports?

  3. #3
    Macbook either will not sleep, or wakes up.

    Member Since
    May 31, 2011
    Posts
    19
    Specs:
    macBook Pro 13 inch Retina 2.4 GHZ Intel i5 with Mavericks
    No devices connected.

    Stooopid of me not to mention that!

  4. #4
    Macbook either will not sleep, or wakes up.

    Member Since
    May 31, 2011
    Posts
    19
    Specs:
    macBook Pro 13 inch Retina 2.4 GHZ Intel i5 with Mavericks
    "bump"

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