jerryfromcasa grande

Q: My Mac freezes when recovering from sleep mode.

When my mac tries to recover from sleep mode it freezes up. The only way to get it working again is to hold the start button and preform a hard start.

iPhone 3GS, iOS 5.0.1

Posted on Feb 8, 2015 12:23 PM

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Q: My Mac freezes when recovering from sleep mode.

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  • by sterling r,

    sterling r sterling r Feb 10, 2015 10:00 AM in response to jerryfromcasa grande
    Community Specialists
    Feb 10, 2015 10:00 AM in response to jerryfromcasa grande

    Hi Jerry!

     

    If I understand correctly you are waking your computer as normal but that makes it become unresponsive and you need to manually power down the computer and turn it back on to use it again. I would recommend that you use these troubleshooting steps from the following article to help determine what the issue here might be:

     

    OS X: When your Mac doesn't sleep or wake

    Reset SMC

    The System Management Controller (SMC) is involved in managing power on your computer. Reset the SMC on your Mac if you are having difficulty sleeping or waking your computer.

    Reset NVRAM/PRAM

    Nonvolatile RAM (NVRAM)/Parameter RAM (PRAM) stores some power-related settings.Try resetting NVRAM/PRAM if you are having difficulty sleeping or waking your computer.

    Test with external devices disconnected

    Some external devices can prevent your computer from sleeping. Try disconnecting items other than your Apple keyboard or mouse from the built-in USB, Thunderbolt and Firewire ports on your Mac. If this resolves the issue, try reconnecting your external devices one at a time until you find the device preventing sleep or wake. Check the documentation that came with the device, or contact the device manufacturer for more information.

    Try Safe Mode

    Check to see if the issue still occurs when the computer is started in Safe Mode. If this resolves the issue, it could be related to a third party software item such as:

    Try another user account

     

    Try creating another user account, or log in as guest. See if your computer sleeps and wakes properly from the additional user account. If it does, your issue may be related to one of the following:

    You can disable login items from the Accounts pane of System Preferences. Try opening only one app at a time in the original user account to determine which app is preventing sleep. If you isolate the issue to a particular app or login item, check its documentation, or contact the developer of that software for more information.

     

    Thank you for using Apple Support Communities.

    Regards,

    Sterling