Macbook Pro 2012 Hibernating? (10.8.2)

I've been having some sleep issues, including some similar to this, on my mid 2009 MBP since I updated to 10.8.2. I just disable safe sleep for now and hope Apple fixes it in the next OSX update.

 

How odd, this very thing happened to me today, in the morning. I usually leave my MBP in sleep mode for ages but this morning when I turned it on I could hear the DVD drive go and then the screen was showing an indicator bar. Also, I was asked to put in my password because I use full-disk encryption.

How do I make it not do this?

 

Did yours start doing this out of the blue as well?

As far as I'm aware I've not changed any settings nor installed anything.

Could you open terminal (cmd + space, type in terminal) and paste this command into it: sudo pmset -g

These are my settings:

Active Profiles:
Battery Power -1
AC Power -1*
Currently in use:
standbydelay 4200
standby 0
womp 1
halfdim 1
hibernatefile /var/vm/sleepimage
gpuswitch 2
sms 1
networkoversleep 0
disksleep 0
sleep 0
autopoweroffdelay 14400
hibernatemode 3
autopoweroff 1
ttyskeepawake 1
displaysleep 15
acwake 0
lidwake 1



It didn't do this until a few days ago, before I was able to have it in sleep mode indefinitely...

 

Mine is doing this also, started after the "Update 2" for the mid-2012 MBP.

Here's the results from my Mac.

Active Profiles:
Battery Power 1
AC Power -1*
Currently in use:
standbydelay 4200
standby 0
womp 1
halfdim 1
hibernatefile /var/vm/sleepimage
gpuswitch 2
sms 1
networkoversleep 0
disksleep 10
sleep 60
autopoweroffdelay 14400
hibernatemode 3
autopoweroff 1
ttyskeepawake 1
displaysleep 10
acwake 0
lidwake 1

I thought there was a thread in here on turning Safe Sleep (that's what's happening) off.

 

I've noticed the same issue after update to 10.8.2 ... maybe it's a feature :/

 

The following article describes how to tweak the various settings linked to safe sleep:

http://www.garron.me/mac/macbook-hibernate-sleep-deep-standby.html

Theoretically, the following command should set hibernate mode off for all power modes (charger, battery, etc.):

Code:

sudo pmset -a hibernatemode 0

(default value: 3)

I've simply set the safe sleep timer to 20 hours with the command given below (as suggested in the article). It seems to work.

Code:

sudo pmset -a standbydelay 72000 

(previous value: 4200)

To check the last time your computer went into hibernation, see if the following file exists:

Code:

/private/var/vm/sleepimage

The date stamp of that file should correspond to the last hibernation and is roughly the size of your RAM. I have 16 GB RAM and get the following result:

Code:

-rw------T  1 root  wheel  17179869184 Nov 18 15:37 /private/var/vm/sleepimage

There's a lot of info on this in the pmset man pages as well.

 

I've changed my standby delay to 20 hours now too. I'm a little puzzled, however, because my settings show that the value for standby is 0, as is the other individual's, and yet it goes into hibernate mode after a few hours.

It wasn't doing this immediately after the update, it just started recently

Thanks for the link tho, I'll see if that sorts it out.

 

Standby=0 here as well. I agree with you, this is slightly confusing. However, when reading the man pages of pmset, it became a bit more clear. Standby only works if hibernatemode is set to 3 or 25. So if you have a doubt, you could just try the following:

sudo pmset -a hibernatemode 0

I've included an extract from the man pages below.

 

Some might also wish to try this:

http://forums.macrumors.com/showthread.php?t=1490410

 

I just tried putting my MBP to sleep overnight instead of shutting it down. It woke up instantly 12 hours later. Before putting it to sleep I had charged it completely. When I woke it up this morning there was 96% battery left.

Anyway, if anyone else wants to give it a try, these are my settings:

Code:

Active Profiles:
Battery Power		-1*
AC Power		-1
Currently in use:
 standbydelay         72000
 standby              0
 halfdim              1
 hibernatefile        /var/vm/sleepimage
 darkwakes            0
 gpuswitch            2
 disksleep            10
 sleep                37
 autopoweroffdelay    14400
 hibernatemode        3
 autopoweroff         1
 ttyskeepawake        1
 displaysleep         4
 acwake               0
 lidwake              1

 

Mine also slept soundly, but there has arisen an annoying issue where it would turn on briefly if I unplugged it...

Could that be due to setting autopoweroff to 0?

 

It's possible, yes. That doesn't happen on mine and I left autopoweroff at 1. If my computer goes to sleep and I then unplug the power cord it stays asleep.

 

This happened to me after the 2.0 Update too. I googled it and ended up doing this. Basically locked my sleepimage file and it stopped all "hibernation/safe sleep."

 

I actually came here because this happened to my MBP today (2012 model).

Guessing it's a new feature now?

 

Same here. MacBook Pro mid 2012, wakes up on connecting/disconnecting AC (no such behaviour before installing the last update).
syslog | grep -i "Wake reason"
produces several entries with Wake reason: EC.ACAttach (Maintenance) and Wake reason: EC.ACDetach (Maintenance). Strange, acwake is set to 0.

Any ideas?

 

That workaround is still working for me (0-byte immutable sleepimage).

I also have my standbydelay set to 24 hours.

I haven't tried seeing what happens now when I let the system sleep for 24+ hours; I suspect it'll just power off, but since it can't write the sleep image, it will be an ungraceful shutdown.

Just remember to save everything before you shut the lid, or power off manually if you know you're not going to use it for the next day or so.

 

Yes.

 

I have these messages as well when plugging/unplugging the mains, but the computer stays asleep.