pmset… chi era costui?

Vi invito alla lettura di un articolo di un gustosissimo comando. pmset, che consente di interagire con le opzioni del risparmio energetico da riga comando. Indispensabile con 10.9 e superiori, durante l’installazione o quando si usa la ricovery partition.

It seems OSX 10.9 comes with a “feature” (previously off by default) whereby after 2 minutes on battery (the default display off time) the machine goes to sleep. This of course kills the wi-fi resulting in constant dropping of SSH connections, reconnection to IM clients (spamming friends) and a host of other internet related issues. It was badly thought out, badly implemented and just an all around bad choice.

In previous iterations of OSX there were two sliders; one for how long before putting the computer to sleep and the other for putting the display to sleep. Here’s a screenshot of the Energy Saver options in 10.9. Noticed the two have been unhelpfully merged.

Fixing this behavior is thankfully very simple and requires only a single terminal command:

sudo pmset -a sleep 0

Here are my power management settings after the change:

$ pmset -g
Active Profiles:
Battery Power		-1*
AC Power		-1
Currently in use:
 standbydelay         10800
 standby              1
 halfdim              1
 hibernatefile        /var/vm/sleepimage
 darkwakes            0
 gpuswitch            2
 disksleep            10
 sleep                0
 autopoweroffdelay    14400
 hibernatemode        3
 autopoweroff         1
 ttyskeepawake        1
 displaysleep         2
 acwake               0
 lidwake              1

And with that you should be back to having a properly functioning laptop. If you ever need to revert the change for whatever reason, use:

sudo pmset -a sleep 1

https://www.flynsarmy.com/?s=pmset

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