Hibernate function in mac os x

Question

Level 1

8 points

Hibernate function in mac os x

a few day ago i just left my laptop without the power cord plugged, i came back after a few hours to find out that the battery was flat out. i restarted my mac with the power cord plugged in, to find out that i have lost everything i was working on, basically the mac had restarted. this happened to me several times, i thought this was something normal on mac since this is my first mac, i have been using windows an on my toshiba portege if the power is not plugged in and the battery dies it goes into hibernation. but then recently i saw a friend of mine who has a macbook and his hibernates if the battery goes flat out, but he doesnt now how to enable this feature. can anyone help me with this thanks.

MacBook 2.0 Unibody Late 2008, Mac OS X (10.5.6)

Posted on Mar 18, 2009 2:54 AM

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Answer 1

Mar 18, 2009 3:48 AM in response to abdu

abdu -
The issue you describe shouldn't happen.

AFAIK Apple recognised that there was a problem with some batteries and released a firmware update to fix it.

Have you tried running Software Update to see?

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Answer 2

Mar 18, 2009 3:52 AM in response to abdu

...or maybe it isn't in Software Update but I do know that Apple has released a number of battery updates for MacBooks.

If/when you find it be very careful before downloading and installing it as if you do the wrong thing, or do things in the wrong sequence, it could permanently ** up your computer. I've seen this happen.

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Answer 3

abdu Author

Level 1

8 points

Mar 18, 2009 4:05 AM in response to Tom in London

i just went through my installed updates and i dont see anything related to battery updates, this is the list of updates i have installed. where and which update do i have to get for my battery. thanks

-24 04:48:14 : "AirPort Extreme Update 2008-004" (1.0)
-24 04:48:16 : "Digital Camera Raw Compatibility Update" (2.3)
-24 04:48:49 : "Java For Mac OS X 10.5 Update 2" (1.0)
-24 04:49:01 : "Security Update 2008-007" (1.0)
-24 04:49:40 : "iTunes" (8.0.2)
-24 04:49:51 : "iPhoto Update" (7.1.5)
-24 04:50:00 : "Migration and DVD ⁄ CD Sharing Update" (1.1)
-24 04:50:07 : "Remote Desktop Client Update" (3.2.2)
-24 04:50:33 : "QuickTime" (7.5.5)
-24 04:50:43 : "MacBook, MacBook Pro Software Update" (1.2)
-24 05:17:14 : "Front Row Update" (2.1.6)
-24 05:17:18 : "QuickTime H.264 Compatibility Update" (7.5.5)
-24 05:17:36 : "Safari" (3.2)
-24 10:08:47 : "Keynote Update" (4.0.2)
-24 10:13:43 : "Pages Update" (3.0.2)
-24 10:13:48 : "Numbers Update" (1.0.2)
-24 10:18:36 : "Keynote Update" (4.0.3)
-30 10:59:12 : "QuickTime" (7.5.7)
-30 11:00:03 : "HP Printer Drivers Update" (1.1.1)
-30 11:00:26 : "Safari" (3.2.1)
-03 19:19:37 : "Pro Applications Update 2007-01" (1.0)
-03 19:27:28 : "PluginManager" (1.7.3)
-08 20:22:53 : "PluginManager" (1.7.3)
-08 20:23:08 : "Aperture Update" (2.1.2)
-15 19:55:33 : "MacBook EFI Firmware Update" (1.3)
-20 12:19:17 : "Mac OS X Update" (10.5.6)
-20 15:09:32 : "Digital Camera Raw Compatibility Update" (2.4)
-20 15:09:35 : "MacBook SMC Firmware Update" (1.2)
-22 20:05:58 : "LiveType Update" (2.0.2)
-22 20:06:00 : "Cinema Tools Update" (3.0.3)
-22 20:06:12 : "Final Cut Pro Update" (5.0.4)
-22 20:06:15 : "Pro Applications Update 2005-01" (1.1)
-22 20:22:39 : "Compressor Update" (2.0.1)
-22 20:22:42 : "Pro Applications Update 2005-02" (1.0)
-24 07:28:59 : "QuickTime" (7.6)
-27 15:21:55 : "NVIDIA Graphics Update 2009" (1.0)
-27 15:22:38 : "iDVD Update" (7.0.3)
-27 15:22:45 : "iLife Media Browser Update" (2.0)
-06 16:05:05 : "GarageBand Update" (5.0.1)
-16 06:46:16 : "Security Update 2009-001" (1.0)
-16 06:46:24 : "Java for Mac OS X 10.5 Update 3" (1.0)
-08 10:36:36 : "AirPort Utility Software Update 2009-001" (5.4.1)
-08 10:36:42 : "Digital Camera Raw Compatibility Update" (2.5)
-08 10:37:00 : "iLife Support" (9.0.1)
-08 10:37:03 : "AirPort Client Update 2009-001" (1.0)
-08 10:37:38 : "iPhoto Update" (8.0.1)
-12 22:09:58 : "iTunes" (8.1)
-12 22:10:09 : "Front Row Update" (2.1.7)

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Answer 4

pullman

Level 4

1,192 points

Mar 18, 2009 6:27 AM in response to abdu

Battery problems have been reported with the unibody Macbooks and Apple issued firmware updates to address these (and other) issues.

Follow the instructions in [this Apple article|http://support.apple.com/kb/HT1237] to find out which firmware you are running. That page also has links to the relevant download pages.

Before installing you could also try resetting the PRAM and the SMC. See [here|http://support.apple.com/kb/HT1379] and [here|http://support.apple.com/kb/HT1411] for instructions.

Ps. Posting this in the [Macbook forum|http://discussions.apple.com/category.jspa?categoryID=218] may render further information.

/p

Message was edited by: pullman

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Answer 5

bdmarsha

Level 4

2,580 points

Mar 18, 2009 7:48 AM in response to abdu

There are commands to enable various sleep settings available in Terminal. In Terminal, type "man pmset" to see the options for hibernatemode.
There is also a freeware pane to provide a nice interface to these settings:
<http://www.apple.com/downloads/macosx/system diskutilities/smartsleep.html>.

bd

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Answer 6

rugix

Level 1

0 points

Mar 27, 2009 9:14 AM in response to abdu

Hi everybody. I have a similar problem. I've noticed that my Macbook is not able to SafeSleep anymore. To be honest I cannot remember if it had "slept" properly in the past but I am quite sure it did.
I checked a couple of things via the terminal and the result is the following:
(pmset -g)
- the hibernatemode is set to 3 for all the power sources
- the hibernatefile is pointing to /var/vm/sleepimage
(ls -slk)
this file sleepimage is not updated when I stop the mac (I checked on another Mac and everytime you stop the date and time of he file are updated)
(sudo rm sleepimage)
The file is deleted and recreated the next time I boot the mac but then the date does not update
(console -> system.log)
Everytime I go into sleep state the following thing occurs:
Mar 27 16:44:12 MacBookzzz kernel[0]: hibernate image path: /var/vm/sleepimage
Mar 27 16:44:12 MacBookzzz kernel[0]: sizeof(IOHibernateImageHeader) == 512
Mar 27 16:44:12 MacBookzzz kernel[0]: Opened file /var/vm/sleepimage, size 2147483648, partition base 0xc805000, maxio 400000
Mar 27 16:44:12 MacBookzzz kernel[0]: hibernate image major 14, minor 2, blocksize 512, pollers 0
Mar 27 16:44:12 MacBookzzz kernel[0]: error 0xe00002bc opening hibernation file
Mar 27 16:44:12 MacBookzzz kernel[0]: IOPolledFileOpen(e00002bc)
Mar 27 16:44:13 MacBookzzz kernel[0]: AirPort: Link Down on en1
Mar 27 16:44:13 MacBookzzz kernel[0]: System Sleep

I've looked just a bit around but the error 0xe00002bc seam to be a "generic error" that does not mean nothing to me.

Summing up it seams that my mac is not able to properly save the content of the RAM into the /var/vm/sleepimage. As a matter of fact the led on the mac starts blinking just few seconds after the stop command and it should not be so quick as it is supposed to write 2.0 GB on the hard disk before stopping the disk.

To be complete I have to say that I have just tried a NVRAM, PRAM and SMC reset but it had not effect.

Please let me know if this behaviour is what happens in your case and if you can find any solution.

Thanks.
Giulio

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Answer 7

rugix

Level 1

0 points

Mar 27, 2009 12:36 PM in response to abdu

Just to add a furhter detail:
on my MacBook Pro where SafeSleep console I read from the console this line:
hibernate image major 14, minor 2, blocksize 512, pollers 4

The difference is in the number of pollers. The not working Macbook has:
hibernate image major 14, minor 2, blocksize 512, pollers 0

Any idea why it happens?
Thanks

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Answer 8

rugix

Level 1

0 points

Apr 21, 2009 8:40 AM in response to rugix

Hi everybody.
Just to let you know how I solved my problem.
Apparently it was related to PGP. I had installed the last version of PGP just to have a look at it. It seams now that it has created a problem with the sleep of the disk even if PGP was not running at startup.
I just uninstalled PGP and everything is fine now. I have my SafeSleep back and working.

Cheers
Giulio

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Answer 9

MosziNet

Level 1

11 points

Jun 7, 2009 11:26 AM in response to rugix

thanx rugix. just to second your problem and solution, i've had this very same problem and the very same solution helped me.
uninstall pgp using pgp desktop->Uninstall and after a restart the safe sleep mode will work as expected.

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