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2013 MBA - No "Computer Sleep" Setting - WTF? - Here's Why

DavidC1 said:
That's identical to the Hibernate function. So leave it less than 3 hours, then you get your regular sleep with virtually zero wake up time courtesy of Haswell. Leave it for longer than 3 hours, than you get Hibernate-like sleep where it uses virtually zero power.
Click to expand...

It seems that it enters S1 state first, then after 3 hours S5.

http://www.anandtech.com/show/6355/intels-haswell-architecture/3

When the screen blanks it enters some of the new S0ix states.

Lets assume you are encoding a movie, which takes longer than 3 hours. You set the display timeout for 5 minutes. Will the encoding finish? How long does the encoding take? (I assume that cpu power is reduced while in sleeping state). :confused:
 
knodi said:
Here is a temp fix. run the command "pmset sleep 180" to change sleep from 1 to 180 (180x of the display sleep time). This seems to work, macbook air won't fall a sleep 2x from the display sleep time.
Click to expand...

Make sure to include a -b (battery) or -c (charger) to apply the command to the correct power profile:

i.e. pmset -b sleep 180

also the 180 does NOT mean 180x the display sleep time . It is the time in minutes after which the computer will sleep.

the standbydelay and autopoweroffdelay command settings are also pertinent.
 
What does the "Prevent computer from sleeping with display is off" setting do. I tried turning it on and off back and forth, and no matter what, the display turns off and i log back in to my skype/IM apps/SSH sessions being disconnected.

Im trying for the computer NOT sleeping when power adapter is in but I cant find any way in the settings..it seems to force sleep regardless of what you do :(. I would also like this even when on battery..windows lets me do all this but im finding this the one drawback in my switch to Mac.
 
Reksy said:
What does the "Prevent computer from sleeping with display is off" setting do. ...

Im trying for the computer NOT sleeping when power adapter is in but I cant find any way in the settings..it seems to force sleep regardless of what you do :(.
Click to expand...

Well the "prevent computer from sleeping" setting is supposed to do just that when on AC. My tests running a torrent indicate that after a few minutes of "display sleep" the connection stays absolutely alive (regardless of whether "prevent comp from sleeping" is checked")

I do know that after 3 hours the new mba goes into hibernate mode - i don't know whether the "prevent comp from sleeping" setting prevents that or not. You can change that hibernate after 2 hours behavior using the terminal pmset command

One other thing - skype is a Microsoft app now. They may not possibly be adhering to correct apple standards regarding sleep states. In other words it is possible that skype may be shutting down the connection when the display blanks. What you decribe could possibly be a problem with skype (which has had many) and not the mba itself. I do know that the computer is alive and running when the display blanks via the test I previously described.

UPDATE: I just ran a test and to ssh'd into my NAS using the terminal ssh command. After 1 minute of display sleep my connection remained alive so I don't know what's up on your end. Have you tried using the terminal ssh? Also - after how long in sleep does the connection die (a few minutes or a few hours?) ?
 
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techn0lady said:
Well the "prevent computer from sleeping" setting is supposed to do just that when on AC. My tests running a torrent indicate that after a few minutes of "display sleep" the connection stays absolutely alive (regardless of whether "prevent comp from sleeping" is checked")

I do know that after 3 hours the new mba goes into hibernate mode - i don't know whether the "prevent comp from sleeping" setting prevents that or not. You can change that hibernate after 2 hours behavior using the terminal pmset command

One other thing - skype is a Microsoft app now. They may not possibly be adhering to correct apple standards regarding sleep states. In other words it is possible that skype may be shutting down the connection when the display blanks. What you decribe could possibly be a problem with skype (which has had many) and not the mba itself. I do know that the computer is alive and running when the display blanks via the test I previously described.

UPDATE: I just ran a test and to ssh'd into my NAS using the terminal ssh command. After 1 minute of display sleep my connection remained alive so I don't know what's up on your end. Have you tried using the terminal ssh? Also - after how long in sleep does the connection die (a few minutes or a few hours?) ?
Click to expand...

I was using iTerm. Im not sure if thats adequate, im new to the mac world, not even a week yet.

Adium also disconnected, which is Mac only. Perhaps applications need to be updated to use this new sleep state?

I might call Apple and just ask.

My sleep times where things disconnect though are around 30 minutes.
 
Reksy said:
My sleep times where things disconnect though are around 30 minutes.
Click to expand...

Do you think it's possible that the apps that you are using auto-disconnect after some minutes of inactivity? Is there a "keep-alive" setting in any of the apps perhaps?
 
mayuka said:
It seems that it enters S1 state first, then after 3 hours S5.

http://www.anandtech.com/show/6355/intels-haswell-architecture/3

When the screen blanks it enters some of the new S0ix states.

Lets assume you are encoding a movie, which takes longer than 3 hours. You set the display timeout for 5 minutes. Will the encoding finish? How long does the encoding take? (I assume that cpu power is reduced while in sleeping state). :confused:
Click to expand...

That's for the older platform. S1 doesn't exist for Haswell.

Also whether it'll sleep when you are doing depends on how well the OS and the software is managed. A good one won't let it go to sleep when you are doing something.
 
techn0lady said:
Do you think it's possible that the apps that you are using auto-disconnect after some minutes of inactivity? Is there a "keep-alive" setting in any of the apps perhaps?
Click to expand...

It doesnt happen otherwise. Even if im not chatting for long periods theyll stay awake if im still using the laptop.

It's only when asleep.
 
Aaargh. I just installed my new 11" Air. Aperture liked to rebuild all of it's previews which takes a long time. When display is turned off, Aperture halts as well.
The 0,3s to wake from sleep seems to be much larger as well. At least is not nearly as quick as just turning on the screen as it was before.
 
kave said:
Aaargh. I just installed my new 11" Air. Aperture liked to rebuild all of it's previews which takes a long time. When display is turned off, Aperture halts as well.
Click to expand...

Seems to me that the new power saving modes have not (yet) been updated to Aperture.

Open your Terminal and enter the following command: pmset -g Maybe we can see what your new MBA is doing.
 
kave said:
Mayuka: actually I checked the dont go to sleep button which seem to work fine.
Click to expand...

Fortunately there are more settings beyond the graphical user interface which can affect sleep. Apple is hinding lots of settings from the user.
 
kave said:
Mayuka: actually I checked the dont go to sleep button which seem to work fine.
Click to expand...

I have that box checked with display sleep at 10 and from my usage and log checks so far that does seem to replicate my old, 2012 MBA setting of display sleep in 10 and computer sleep never when on AC.

OP>> Thanks for the thread. I too was a bit baffled by the new energy pane when I saw it.
 
Weaselboy said:
I have that box checked with display sleep at 10 and from my usage and log checks so far that does seem to replicate my old, 2012 MBA setting of display sleep in 10 and computer sleep never when on AC.
Click to expand...

If you enter pmset -g in your Terminal you'd see that there are quite a few more options hidden from the user, including hibernation mode and suspend to disk/ram.
 
This is the output from pmset -g with option prevent sleep mode enabled:
Code: 
Active Profiles:
Battery Power		1
AC Power		2*
Currently in use:
 standbydelay         10800
 standby              1
 womp                 1
 halfdim              1
 hibernatefile        /var/vm/sleepimage
 darkwakes            1
 networkoversleep     0
 disksleep            10
 sleep                1 (sleep prevented by 953)
 autopoweroffdelay    14400
 hibernatemode        3
 autopoweroff         1
 ttyskeepawake        1
 displaysleep         10
 acwake               0
 lidwake              1

And this is with option prevent sleep mode disabled:
Code: 
Active Profiles:
Battery Power		1
AC Power		2*
Currently in use:
 standbydelay         10800
 standby              1
 womp                 1
 halfdim              1
 hibernatefile        /var/vm/sleepimage
 darkwakes            1
 networkoversleep     0
 disksleep            10
 sleep                1
 autopoweroffdelay    14400
 hibernatemode        3
 autopoweroff         1
 ttyskeepawake        1
 displaysleep         10
 acwake               0
 lidwake              1
 
Here's the ouput of my 2012 Macbook Air for a comparison:

Code: 
$ pmset -g
Active Profiles:
Battery Power		-1*
AC Power		-1
Currently in use:
 standbydelay         4200
 standby              1
 halfdim              1
 hibernatefile        /var/vm/sleepimage
 darkwakes            0
 disksleep            10
 sleep                120 (sleep prevented by 1586)
 autopoweroffdelay    14400
 hibernatemode        3
 autopoweroff         1
 ttyskeepawake        1
 displaysleep         3
 acwake               0
 lidwake              1

I think you should set sleep to a higher value. I just ordered my 2013 MBA. It should arrive next Monday or so. Maybe you find out what the option womp does...
 
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