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vivithemage
Dec 12, 2011, 04:33 PM
I removed hibernation, and deleted the 4GB file from my MBA, is it possible to get it back? I want to see if it saves any battery by having it go into hibernation instead of just sleep.



Mal
Dec 12, 2011, 04:37 PM
How did you turn off hibernation? Generally, just do the same, but in reverse or with one different setting. For instance, if you did it via a Terminal command, usually you'll change TRUE to FALSE, 1 to 0, or something similar.

jW

vivithemage
Dec 12, 2011, 04:38 PM
did it via terminal, but I also deleted the 4GB~ file, will it just recreate?

Intell
Dec 12, 2011, 04:48 PM
It will just recreate the file. Also, look into the pref pane "SmartSleep". It allows you to easily set your sleep mode.

vivithemage
Dec 12, 2011, 05:36 PM
Where is this smartlseep option?

roadbloc
Dec 12, 2011, 06:10 PM
Where is this smartlseep option?

It's 3rd party. http://www.jinx.de/SmartSleep.html

iThinkergoiMac
Dec 12, 2011, 10:01 PM
It won't change your battery life. Once the MBA writes the sleepimage, it goes into the exact same sleep mode it goes into right now. The sleepimage is really only for when it runs out of power, or goes into deep sleep mode just before running out of power.

Intell
Dec 12, 2011, 11:39 PM
You could set your Macbook Air to hibernate only. In this mode it writes the contents of the ram to the disk then turns off the system. Then when you press the power button to turn it back on, it'll read in the disc contents and put you back to where you where. It uses no battery life in hibernation only mode.

vitzr
Dec 12, 2011, 11:50 PM
You could set your Macbook Air to hibernate only. In this mode it writes the contents of the ram to the disk then turns off the system. Then when you press the power button to turn it back on, it'll read in the disc contents and put you back to where you where. It uses no battery life in hibernation only mode.

Sage advice.

I use mine this way as well. It also seems a bit faster than sleep.

vivithemage
Dec 13, 2011, 08:12 AM
You could set your Macbook Air to hibernate only. In this mode it writes the contents of the ram to the disk then turns off the system. Then when you press the power button to turn it back on, it'll read in the disc contents and put you back to where you where. It uses no battery life in hibernation only mode.

How long does it take to come out? Where can I enable this as well? I will run :


sudo pmset hibernatemode 1

to turn it back on, but how do I tell the MBA to hibernate with 15 minutes of inactivity and not just sleep?