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  1. #1

    Member Since
    Apr 30, 2012
    Macbook Air difficulty waking up.
    My Macbook Air OsX8.5, after a sleep, often wont wake up and I have to 'Ctrl-Cmd-power' held down for 20 secs to wake it. Then I have to reboot from scratch and it tells me there has been a problem. This is beginning to happen quite often. Why does it do this and is there something I should I do please?

  2. #2

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Keller, Texas
    2017 27" iMac, 10.5" iPad Pro, iPhone 6s+, iPhone 7+, Numerous iPods, High Sierra
    Try resetting the System Management Controller (SMC). See the following Apple KB article to learn how: LINK

  3. #3

    Member Since
    Apr 30, 2012
    THanks very much Chscag, I gave it a try and am waiting to see if it make a difference. Paul

  4. #4

    Member Since
    Apr 30, 2012
    My Macbook Air is still often very reluctant to wake up, particularly if I close the lid to put it to sleep. When I open it the screen is black. I then have to press Ctrl Alt and the dlete key and wait several minutes before it come to life.
    If I leave it on with the lid open it sometimes rebooted itself without any instruction from me.
    I have tried resetting the System Management Controller (SMC) but it does not solve the problem.
    Anything else I could do? Is there a hard reset somewhere so if it permanently stays asleep I can wake it up?

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