Mac Pro never sleeps after upgrading to Mavericks

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Level 1

14 points

Mac Pro never sleeps after upgrading to Mavericks

Hi Folks

Just realised that after upgrading to Mavericks from Mountain Lion, my Mac Pro never goes into sleep mode after the time set for it in System Preferences > Energy Saver.

This never happened with Mountain Lion.

Any body here having the same issue?

FYI - This is a 2012 Mac Pro having duo 6-cores, 64 GB RAM, 1 x SSD and 3 x HDD.

Thanks you for your comments.

B

Mac Pro, OS X Mavericks (10.9), Mid 2012

Posted on Nov 5, 2013 3:28 AM

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Answer 1

Best reply

Linc Davis

Level 10

209,547 points

Nov 5, 2013 10:13 AM in response to bengmugenr

Test after each of the following steps that you haven’t already tried:

Step 1

Take all the steps suggested in this support article. That's the starting point for any further effort to solve the problem. Skipping any of those steps may mean that the problem won't be solved. Note that, as stated in the article, the computer will not sleep if Internet Sharing is enabled.

Step 2

From the menu bar, select

 ▹ System Preferences ▹ Accessibility ▹ Speakable Items: Off

Step 3

Select

 ▹ System Preferences ▹ Bluetooth ▹ Advanced...

and uncheck both boxes marked

Open Bluetooth Setup Assistant at startup if...

Step 4

Reset the SMC.

Step 5

Boot in safe mode and log in to the account with the problem. Note: If FileVault is enabled on some models, or if a firmware password is set, or if the boot volume is a software RAID, you can’t do this. Post for further instructions.

The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.

Safe mode is much slower to boot and run than normal. Don’t launch any applications at first. If sleep still doesn’t work properly, back up all data and reinstall the OS. After that, if you still have the issue, make a “Genius” appointment at an Apple Store to have the machine tested.

If sleep now works as expected, go on to the next step.

Step 6

Still in safe mode, launch the usual set of applications that are running when you have the problem, including your login items, one at a time, testing after each one. Some applications may not work; skip them. You might be able to identify the cause of the problem this way.

Step 7

If sleep is still working after you’ve launched all the usual applications, reboot as usual (not in safe mode) and test again. If sleep still works, you’re done, at least for the moment.

If you still have the sleep issue after booting out of safe mode, post again.

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Answer 2

bengmugenr Author

Level 1

14 points

Nov 6, 2013 12:11 AM in response to Linc Davis

Hi Linc

Thank you very much for the detailed steps. I tried Step 1 to 4 and I believe resetting the SMC fixed my issue. You steps should be submitted to Apple as an official KB article. 🙂

Per the Apple KB article:

The System Management Controller (SMC) is responsible for many low-level functions on Intel-based Macs. These functions include:

Responding to presses of the power button
Responding to the display lid opening and closing on portable Macs
Battery management
Thermal management
The SMS (Sudden Motion Sensor)
Ambient light sensing
Keyboard backlighting
Status Indicator Light (SIL) management
Battery status indicator lights
Selecting an external (instead of internal) video source for some iMac displays

Anyway, I am still curious about which particular part of the System Management Controller caused the problem, or why the no sleep issue could be correlated to SMC?

FYI, I have restored the Login Items under my profile and the original settings of Step 2 and 3, the Mac Pro still can sleep as expected. Therefore I think these items were not related to the issue.

Cheers

B

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Answer 3

Nov 9, 2013 4:01 PM in response to bengmugenr

SMC reset fixed it for me also! Thanks!

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Answer 4

Dec 20, 2013 6:49 PM in response to christos125

I have a question... brand new 13 rMBP running Mavericks....

In Engergy Saver.... for both battery and power adapter...

I see only an option for...

Turn Display off after:

No option for 'Computer Sleep' like my other system with Moutain Lion...

I use to use this and slide to Never many times.

How do I prevent my MBP from going to sleep when doing work like backing up????

Thanks.

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Answer 5

bengmugenr Author

Level 1

14 points

Jan 11, 2014 11:31 AM in response to Tigervision

I think if the computer is doing some kind of OS X backup such as Time Machine Backup, it won't go into the sleep mode, probably user or application based backing up might be like that going to sleep mode.

If you can't see the Computer Sleep option, that might be an issue. Ever checked your battery status?

Tigervision wrote:

...

How do I prevent my MBP from going to sleep when doing work like backing up????

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