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No sleep settings? Haswell 2013 iMac

insimbi

macrumors 6502
Original poster
Mar 27, 2008
350
36
My Energy Saver settings seems to be missing some things? This is the screen that comes up when I click Energy Saver in System Prefs. Where are the sleep settings?

 

benthewraith

macrumors 68040
May 27, 2006
3,120
131
Miami, FL
My Energy Saver settings seems to be missing some things? This is the screen that comes up when I click Energy Saver in System Prefs. Where are the sleep settings?

Image

I'm just guessing, like 2013 MBAs, they've removed seperate timers for disk sleep and display sleep from system preferences in the new Haswell iMacs.
 
Comment

insimbi

macrumors 6502
Original poster
Mar 27, 2008
350
36
I'm just guessing, like 2013 MBAs, they've removed seperate timers for disk sleep and display sleep from system preferences in the new Haswell iMacs.

Oh, I wasn't aware that's how the 2013 MBA's were. So if it says "Turn display off after" and it's set for 10 mins, it actually will be sleeping at the same time?
 
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benthewraith

macrumors 68040
May 27, 2006
3,120
131
Miami, FL
Oh, I wasn't aware that's how the 2013 MBA's were. So if it says "Turn display off after" and it's set for 10 mins, it actually will be sleeping at the same time?

I think if nothing's set a power assertion preventing disk sleep, then yes.
 
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bp1000

macrumors 65816
Jul 7, 2011
1,369
62
The Haswell chips have native support for low power idle

I think apple combined the display timeout with the haswell low power state management.

It is just so quick at waking up you dont think its actually been sleeping. It is also worth mentioning that while the display timeout allows the cpu to enter a low power state, if a task is running it wont cut it off. It will go into standby after a certain period of inactivity, that might be 3 hours like the laptops.
 
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bluescale

macrumors member
Sep 27, 2013
89
0
It is also worth mentioning that while the display timeout allows the cpu to enter a low power state, if a task is running it wont cut it off. It will go into standby after a certain period of inactivity, that might be 3 hours like the laptops.

Is that the Power Nap functionality you're describing? Unless Apple just hasn't update the document for it, the Haswell iMacs don't support it:

http://support.apple.com/kb/ht5394
 
Comment

stiffy

macrumors newbie
Apr 29, 2014
4
0
edit "/S/L/E/IOPlatformPluginFamily.kext/Contents/PlugIns/X86PlatformPlugin.kext/Contents/Resources/Your-Mac-Model.plist

find:
<key>UnifiedSleepSliderPref</key>
<true/>

replace:
<key>UnifiedSleepSliderPref</key>
<false/>

rebuild kext cache and reboot.
 
Comment

jmille44

macrumors regular
Oct 31, 2005
100
7
How do you find out your what your Your-Mac-Model.plist is?
All I see in there is a bunch of numbers.plist in a list and can not
identify which would be fore the New Mac Pro?

Thanks
 
Comment

stiffy

macrumors newbie
Apr 29, 2014
4
0
How do you find out your what your Your-Mac-Model.plist is?
All I see in there is a bunch of numbers.plist in a list and can not
identify which would be fore the New Mac Pro?

Thanks

Mac-F60DEB81FF30ACF6.plist
 
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