iMac Sleep

Rhyalus

macrumors 6502
Original poster
Mar 4, 2011
387
5
Hello All,

My question is specific to my new iMac. I am a long time MBP user, so I have a good grip on sleep issues and what the system does.

On the iMac, there is a choice for time to "display sleep" in the energy saver options - is this the same as system sleep, or is it truly just the display?

The core question is, how do I control the timing for which the entire system chooses to sleep - other than putting the system to sleep manually (clicking apple icon, selecting sleep)... is there a GUI control or do I need to set sleep from the command line?

Here are my pmset results:

Currently in use:
standby 1
Sleep On Power Button 1
womp 0
halfdim 1
hibernatefile /var/vm/sleepimage
darkwakes 0
autorestart 0
networkoversleep 0
disksleep 10
sleep 0
autopoweroffdelay 14400
hibernatemode 0
autopoweroff 1
ttyskeepawake 1
displaysleep 30
standbydelay 10800

Thanks,
R
 
Last edited:

Rhyalus

macrumors 6502
Original poster
Mar 4, 2011
387
5
Hello all... Does anyone know when your iMac actually goes to sleep? Is my question overly difficult or overly silly?

Thanks,
R
 

yjchua95

macrumors 604
Apr 23, 2011
6,725
231
GVA, KUL, MEL (current), ZQN
Hello All,

My question is specific to my new iMac. I am a long time MBP user, so I have a good grip on sleep issues and what the system does.

On the iMac, there is a choice for time to "display sleep" in the energy saver options - is this the same as system sleep, or is it truly just the display?

The core question is, how do I control the timing for which the entire system chooses to sleep - other than putting the system to sleep manually (clicking apple icon, selecting sleep)... is there a GUI control or do I need to set sleep from the command line?

Here are my pmset results:

Currently in use:
standby 1
Sleep On Power Button 1
womp 0
halfdim 1
hibernatefile /var/vm/sleepimage
darkwakes 0
autorestart 0
networkoversleep 0
disksleep 10
sleep 0
autopoweroffdelay 14400
hibernatemode 0
autopoweroff 1
ttyskeepawake 1
displaysleep 30
standbydelay 10800

Thanks,
R
If you're referring to a late-2013 or later iMac, which use Haswell processors, 'Turn display off after x minutes' refers to both powering off the display and sleeping the computer. It's the same as system sleep.

On all Haswell computers, display sleep and system sleep are together.

When the display sleeps, the system sleeps together with it.

Myself, I always check the option to prevent system sleep when the display goes to catch some 'z's.
 

Rhyalus

macrumors 6502
Original poster
Mar 4, 2011
387
5
On all Haswell computers, display sleep and system sleep are together.

When the display sleeps, the system sleeps together with it.

Myself, I always check the option to prevent system sleep when the display goes to catch some 'z's.
Many thanks... but by doing the above, aren't you preventing the system from going to sleep altogether, unless you select sleep manually? Is that why you do that?

R
 

yjchua95

macrumors 604
Apr 23, 2011
6,725
231
GVA, KUL, MEL (current), ZQN
Many thanks... but by doing the above, aren't you preventing the system from going to sleep altogether, unless you select sleep manually? Is that why you do that?

R
I don't want system sleep to happen at all, so I checked that option. I always let my projects render and transcode while I'm away. Quite a lot of the time, my work requires non-stop rendering for 3 straight days in the background.

Leave it unchecked if you want the system to go to sleep when the display sleeps as well.
 
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