10 November 2012

Solution to "MacBook takes too long to wake up issue"

Problem:


After I upgraded to Mac OS Mountain Lion: My MacBook suddenly took much longer to become operational again after I opened its lid...

Solution:


In terminal or iTerm enter the following:

sudo pmset -a standbydelay 50000


Explanation:


This sets the delay from the default 4200 seconds up to 50.000 (more than 13 hours)

The OS has two different hibernation / sleep modes: one preserves the whole RAM content during sleep (which makes wakeup a breeze), the other stores RAM content on disk or SSD (which, in case of several GByte RAM, will need 10 secs and more to wake).

References:


Thanx to some discussion on apple.stackexchange


In case you want to learn more about hibernation and power management - consult the reference documentation.

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