Use pmset to restore your Mac’s instant-wake after upgrading to Yosemite

I just upgraded to Mac OS X Yosemite Beta 3, and sure enough, Apple has once again broken my time-to-deep-sleep setting. After I upgraded, I noticed that my computer took a few seconds to wake from sleep, rather than the usual instant-on that defined OS X for so long. I checked pmset, Mac’s power management command-line utility:

$ pmset -g
Active Profiles:
Battery Power       -1*
AC Power        -1
Currently in use:
 standbydelay         4200
 standby              1
 halfdim              1
 hibernatefile        /var/vm/sleepimage
 gpuswitch            2
 darkwakes            0
 disksleep            10
 sleep                0
 autopoweroffdelay    14400
 hibernatemode        3
 autopoweroff         1
 ttyskeepawake        1
 displaysleep         10
 acwake               0
 lidwake              1

Sure enough, the standbydelay setting, the time until the computer switches from “sleep” to “deep sleep”, is back to 4,200 seconds (1 hour 10 minutes), not the 24 hours that I had set it to last year.

So, as before, if you want to speed up your wake up time in everyday use of your laptop, run the following command in the Terminal:

sudo pmset -a standbydelay 86400

Check in for a new post come next upgrade! (Mammoth?)

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