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You are here: MacNN Forums > Community > MacNN Lounge > 'Safe Sleep' for all!!!

'Safe Sleep' for all!!!
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tooki
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Nov 13, 2005, 02:33 PM
 
So, as most of you probably know, the latest PowerBook update brought back hibernation (where the contents of RAM are saved to disk, in case the RAM should lose power during sleep), under the name Safe Sleep. (It was last present in Mac OS 9.0-9.0.3.)

Well, it turns out there's no new hardware involved in doing this, so someone figured out how to make it work on any Mac.

Safe Sleep Your Mac

I haven't tried it yet, but early reports are encouraging.

tooki
     
Dark Helmet
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Nov 13, 2005, 02:51 PM
 
Ya I remember the first iBooks had it. Then they pulled it because it was causing problems. Can't believe it took this long to sort out.

"She's gone from suck to blow!"
     
tooki  (op)
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Nov 13, 2005, 08:05 PM
 
Yeah, my Pismo had that function for about 2 months before updates nixed it. It never caused me problems, but I never saw it work right, either!

Let's hope it's done right this time around!

tooki
     
Tesseract
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Nov 13, 2005, 08:13 PM
 
Worked For Me. Once. On the officially supported hardware.
     
ism
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Nov 18, 2005, 08:34 PM
 
Works well here.
     
twocows
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Nov 18, 2005, 09:05 PM
 
i dont have tiger. just 10.3.9
will it still work?
     
JoshuaZ
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Nov 19, 2005, 12:48 AM
 
What is the super great advantage of this?
     
Dale Sorel
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Nov 19, 2005, 01:20 PM
 
Originally Posted by JoshuaZ
What is the super great advantage of this?
Tooki likes it
     
tooki  (op)
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Nov 19, 2005, 01:27 PM
 
Originally Posted by twocows
i dont have tiger. just 10.3.9
will it still work?
No, of course not. It's a software feature that was introduced in 10.4.3. It's not even in earlier versions of Tiger.

Originally Posted by JoshuaZ
What is the super great advantage of this?
That if your battery runs out while the machine is asleep, the contents of RAM won't be lost. This is also of particular use to owners of 12" PowerBooks and all iBooks, which have no backup battery to allow batteries to be swapped while asleep.

tooki
     
tooki  (op)
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Nov 19, 2005, 01:28 PM
 
Originally Posted by Dale Sorel
Tooki likes it
I actually haven't tried this yet. I just thought it might interest people.

tooki
     
Peter
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Nov 19, 2005, 04:10 PM
 
Thanks tooki - I've been hoping this would be implemented.
     
Big Mac
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Nov 19, 2005, 09:53 PM
 
It's nice to see that Apple is making progress in reimplementing this feature. Hopefully, at some point not too far from now, we'll be able to invoke hibernation from the GUI rather than having it only as a fail-safe.

"The natural progress of things is for liberty to yield and government to gain ground." TJ
     
gradient
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Nov 19, 2005, 10:38 PM
 
I've got it setup on my iBook - works great.
     
gradient
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Nov 19, 2005, 10:45 PM
 
*Edit* Redundant post
     
zerostar
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Nov 19, 2005, 11:52 PM
 
Works perfect here, running on a 1.5 PB G4
     
Prijker
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Dec 10, 2005, 05:48 PM
 
on new HD powerbooks, safe sleep is off by default, i.e., if you choose sleep, it will... sleep.
if you want to safe sleep directly, just enter in the Terminal

sudo pmset -a hibernatemode 1

prijker
     
rickey939
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Dec 10, 2005, 06:06 PM
 
Shouldn't be this under the "Applications" forum?

     
wdlove
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Dec 10, 2005, 07:13 PM
 
Sleep is very important.

"Never give in, never give in, never, never, never, never - in nothing, great or small, large or petty - never give in except to convictions of honor and good sense." Winston Churchill
     
flabasha
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Dec 10, 2005, 08:54 PM
 
Has anyone been able to get this to work on titanium models?

I desperately need this function as my 1ghz Ti will only sleep for a few hours before it shuts off and I lose what I was working on...
     
ShortcutToMoncton
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Dec 10, 2005, 09:20 PM
 
Originally Posted by wdlove
Sleep is very important.
*guffaw*
Mankind's only chance is to harness the power of stupid.
     
   
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