MacOS – MacBook Pro: long time to wake from sleep, what could it be

macbook promacossleep-wake

I have a 2011 13-inch entry-level MacBook Pro, which was upgraded almost straight away to Lion.

I consider myself a careful, conscientious user, not installing things I don't need. However, recently, my MacBook Pro has started taking a very long time to wake from sleep.

I understand that it takes a long time to go to sleep, around 15-25 seconds usually. However, before, waking up was almost always instantaneous.

I'd like to know if there are any terminal or gui-based tools that help diagnose this problem. I recently checked pmset -g assertions and that seems to be fine. Any other tools I can use?

Best Answer

Updating my own question: it was a software issue after all. Avatron's Air Display server software installs a helper daemon that slows down the waking of my MacBook Pro.

After uninstalling it, the Mac wakes up a lot more quickly.

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Mac – Why won’t the Mac Pro wake from sleep at the scheduled time

Try resetting the System Management Unit (SMU); the SMU is typically responsible for tracking when your Mac is scheduled to wake up.

With regard to your Mac Pro appearing not to keep time, this is not a problem. It is expected behaviour for the menu bar clock to update a few seconds after your Mac has woken up.

The process controlling the clock needs to get a change in time notification before updating; it will not match your Mac's internal clock immediately upon waking up.

MacOS – MacBook does not sleep when lid is closed

A lack of wake reason entries suggests your Mac is never fully sleeping. The sleep mechanism has started but never completes.

Use the following Terminal command to view a detailed log showing your Mac's power history:

pmset -g log

You will see a list of entries in form:

 * Domain: applicationresponse.slowresponse
 - Message: PMConnection AirPort configd plug-in com.apple.powermanagement.applicationresponse.slowresponse 1399 ms
 - Time: 13/03/2012 12:27:53 CET 
 - Signature: AirPort configd plug-in
 - UUID: AB482838-2D6E-0000-0000-14BF53E20000
 - Result: Noop
 - Response time (ms): 1399

Look out for applications that may be keeping your Mac awake and active. Applications and other processes can keep your Mac awake if they are providing a service, such as file sharing or remote access. However, processes should be forced asleep after 30 seconds on lid close.

The behaviour you are seeing suggests a kernel extension or IOKit problem. User level processes can not block sleep when instigated by the user.

Do you have any utilities installed that install kernel extensions (kext)? These might include screen recording or audio capture tools; utilities than need low level access to your Mac.

Best Answer

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Mac – Why won’t the Mac Pro wake from sleep at the scheduled time

MacOS – MacBook does not sleep when lid is closed

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