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Switcher Hangout The place for switchers to discuss their new machines, and how to work with OS X. General support can be had here for newbie stuff, like "How do I restart my new iMac?" :)

Going to Sleep???


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sph

 
Member Since: Nov 06, 2006
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For some reason my iMac no longer goes to sleep after 20 minutes of being idle like it used to. I havent installed any new applications recently and it just stopped going to sleep. I come back an hour or two after using it and the monitor is still on. I've been having to manually make it go to sleep.

I checked the energy saver options in system preferences and it correctly shows that my monitor display should be going to sleep after 20 minutes.

Help!!
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shahvikram123

 
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Member Since: Nov 16, 2006
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If something is downloading then I don't think your mac will go to sleep...maybe thats why...
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sph

 
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unfortunately thats not the case. I have all applicatons closed and nothing is downloading. Still wont go to sleep.
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biggyk33

 
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it is unfourtunately an insomniac, what you need to do is crush up a fiew zambian into the keyboard... that will put it to sleep... permanently
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XMARLTONX

 
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Try going into

System Preferences>Energy Saver>Sleep

and ajusting the time.
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sph

 
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still doesnt work. I adjusted the time but ti still only sleeps when I force it manually
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professorjay

 
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Do you have a usb device plugged in? Like a midi keyboard? That might keep it awake?
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XMARLTONX

 
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Quote:
Originally Posted by professorjay View Post
Do you have a usb device plugged in? Like a midi keyboard? That might keep it awake?
I dont think that would. What about calibrating the battery?
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snoslicer8

 
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This is an iMac, it doesn't need battery calibration. What you need to do is reset the PMU or SMC, whatever they're calling it now (Power Management Unit, System Management Controller, respectively). To do this, do the following:

1. Shut down the computer
2. Unplug the power adapter and ALL OTHER CABLES (USB, firewire, everything).
3. Hold down the Power button for AT LEAST 10 seconds. To reset my friend's, I hold it down usually for 20-30 seconds.
4. Plug everything back in, save the power cable for last.
5. Power on the computer.

This process resets the PMU or SMC, which is the logic board chip that controls how your Mac sleeps/wakes, among many other things. Good luck!

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Title27GT

 
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Quote:
Originally Posted by snoslicer8 View Post
This is an iMac, it doesn't need battery calibration. What you need to do is reset the PMU or SMC, whatever they're calling it now (Power Management Unit, System Management Controller, respectively). To do this, do the following:

1. Shut down the computer
2. Unplug the power adapter and ALL OTHER CABLES (USB, firewire, everything).
3. Hold down the Power button for AT LEAST 10 seconds. To reset my friend's, I hold it down usually for 20-30 seconds.
4. Plug everything back in, save the power cable for last.
5. Power on the computer.

This process resets the PMU or SMC, which is the logic board chip that controls how your Mac sleeps/wakes, among many other things. Good luck!
DUN DUN DUN.
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