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Hibernate preference pane will enable set switch between different sleep states on your Mac:

  • sleep
  • hibernate & sleep
  • hibernate
If you own and PPC Mac with 1GHz or more chances are good that Hibernation will work on your machine. Some machines do need the NVRam patch. That means that there are some values then stored in the no-volatile ram of the computer to say it's hibernate capable. When the os boots up it checks for those values. The software currently tests for machines>=1 GHz to enable NV-Ram patching. It is known that some machines don't sleep at all, some won't start more...

What's New

Version 1.00:
  • Now works correctly with Intel Mac enabling to use JUST Sleep on Intels.

Requirements

Mac OS X 10.4.3 or later, PowerPC

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Hibernate User Discussion

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christefano Member IconReview+15
christefano
+0

Excellent utility. It's working beautifully on our PowerBook G4 (a server with hibernation turned on) and MacBook Pros (our main workstations with hibernation turned off).

Reply0 replies
Version 1.0
sjj_public Member IconComment+6
sjj_public
+0

It's important to note that in order for this feature to actually be functional, you must have more free disk space than you have RAM. I forget the exact amount more, but 1.5*RAM worth of disk space should work. This disk space must be available when you reboot after applying the NVRAM patch - making free space after rebooting won't help, until you reboot again.

Moreover, you should really make substantially more than 1.5*RAM available, because you're going to lose all that disk space when the hibernate cache is created at startup - you don't want to end up with a disk with dangerously low free space! So I'd suggest making more like 1.5*RAM + 1 GB free space before applying the patch. Ex: if you have 1 GB of RAM, then make sure there is at least 1.5*1+1 = 2.5 GB of free disk space before applying the patch and rebooting. When you come back up you'll find you have only about 1 GB of free space left.

Reply0 replies
Version 0.81
sjj_public Member IconComment+6
sjj_public
+0

I think this is useful in "Sleep and hibernate" mode, but the value of always hibernating seems questionable to me. Having had it in always-hibernate mode for a week or two now, I ended up switching to sleep-and-hibernate.

I have not timed it, but I would estimate that shutting down and powering back up, especially with 10.4's extensive caching, is just as fast as going to hibernate and back, at least on my 2 GB RAM, 1.5 GHz PowerBook G4. Plus shutting down has the advantage of giving you a clean slate to work with at the next power up and you have the option of a quick sleep/wake when needed. If you set your powerbook to always hibernate, then you lose that quick sleep/wake capability.

The as-long-as-full-startup restore from hibernate mode takes away most, if not all, of the advantage of sleep mode, and hibernate mode, like sleep mode, can't be trusted - you should save open documents before using it. Given that they are saved, there is little advantage to hibernate mode versus shutting down, since after a normal powerdown/startup you can just open the saved documents and be where you left off. Moreover, shutting down reminds you to save unsaved documents, so it is inherently safer. If hibernate mode were nearly as fast as normal sleep, then it would hold an advantage over sleep, but since it is so slow, its value as as sleep replacement, as opposed to a supplement, is highly questionable.

As a supplement, however, for when your powerbook/ibook accidentally loses power while asleep... that can be useful. It may prove to save ones bacon some day. So set it for "Sleep and hiberate" mode, and use shutdown, not hibernate mode, when you want to minimize power drain.

Reply0 replies
Version 0.81
Anonymous Member IconReview
Anonymous
+0

Seems promising, maybe it just doesn't work on my Mac, although i have read reports of it working on other 1GHz TiBooks.

Any hints?

Reply1 reply
Version 0.81
Anonymous Member Icon
Anonymous
+0

If it doesn't work, OS X doesn't support it on your TiPB. It only enables the switch in the operating system, that's already there.
I haven't heard of any successfull TiPB with hibernation working.

Anonymous Member IconReview
Anonymous
+0

What a beautiful piece of software, i was a little scared to try the manual approach that has been floating around, and knew that some fine person would put a GUI on it. So far i've only tested this on a 1.2GHz 12" iBook, every thing seeems to work fabulously. I especially like how it only boots from the disk image if the battery dies, this speeds up the wake up process. Well done!

Reply0 replies
Version 0.81
Anonymous Member IconReview
Anonymous
+0

Works perfect, but I still dont use it. Why ? The iBook-Dual-Screen is not working or is there anything, i did wrong ?

Reply1 reply
Version 0.81
Anonymous Member Icon
Anonymous
+0

It works with the nvram patch for the dual screen, but as it does not change your nvram if you've changed it you have to set the dual screen AND hibernation value yourself.
I might add that functionality to the patch as well :-)

Anonymous Member IconReview
Anonymous
+0

Seems to work as promised - on rev A, 17Al.

Success, thanks.

Reply0 replies
Version 0.81
Anonymous Member IconReview
Anonymous
+0

What is the difference between "Hibernate" and "Sleep" mode?

Reply1 reply
Version 0.81
Anonymous Member Icon
Anonymous
+0

hibernate saves the memory to disk. In case your mac has no power at all it can still restore from the hibernationimage.

Ianweir Member IconComment+19
Ianweir
+0

I tried installing this on my 1.2 ghz G4 iBook and it wouldn't let me, stating that my processor is too slow. Should this actually be the case?
I know it says > 1.2 ghz is required, but it seems to make more sense to say >= 1.25 ghz, or something, because people (including myself) tend to assume it means greater than 1.2 ghz inclusive is required.(assuming, of course, that it is actually > 1.2 ghz that is required, and not simply a bug)

Reply1 reply
Version 0.8
Anonymous Member Icon
Anonymous
+0

use the new version it's set to enable the patch at lower ( 1GHz ) cpu frequency.

you can even overwrite that test now manually.

Anonymous Member IconReview
Anonymous
+0

The reason it says use at your own risk is because the hibernate function of 10.4.3 is only supposed to be used in Apple's new laptops. In theory it should work on every mac with 10.4.3, but as you can see, it doesn't work perfectly on non-new laptops (fans malfunctioning etc.).

Reply1 reply
Version 0.8
Vitalis
+0

It still won't ever destroy your machine, using the instructions i gave earlier you can fix it easily when something would go wrong

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Details

Downloads 11,469
Version Downloads 7,971
Type Utilities / System
License Free
Date 16 Sep 2007
Platform OS X / PPC 32 / Intel 32
Price Free
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