New Mac Pro won't stay asleep

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Level 1

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New Mac Pro won't stay asleep

Hi everyone. I took delivery of my new Mac Pro a few days ago. It's the highest spec model (12 core, 64gb memory, 2 x 6gb graphics and 1TB SSD). It's connected to two 30" screens and networked to a Windows storage server.

The problem I have is that it won't stay asleep. Basically after being asleep for a couple of minutes the screens suddenly come back on and the login window appears as though somebody has pressed a key. After a minute or so it goes back to sleep and then it wakes up again and continues in a cycle.

I have tried making sure all programs are closed and nothing is running at all but it still happens.

I just wonder if anyone else has had this issue or might know a solution?

Posted on Apr 13, 2014 9:27 AM

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Answer 1

sgginc

Level 3

676 points

Apr 13, 2014 10:07 AM in response to Macron 81

Open your Energy Saver Preference Pane

and uncheck "Wake for ethernet network access".

Thanks ...
Ken

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Answer 2

Macron 81 Author

Level 1

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Apr 13, 2014 10:53 AM in response to sgginc

Okay I tried that but the problem still remains. After around 2 minutes it just wakes up again as if someone has pressed the keyboard. I also tried disabling "power nap" but that didn't work either, same result.

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Answer 3

Linc Davis

Level 10

209,547 points

Apr 13, 2014 12:45 PM in response to Macron 81

The warranty entitles you to complimentary phone support for the first 90 days of ownership.

If you bought the product in the U.S. directly from Apple (not from a reseller), you have 14 days from the date of delivery in which to exchange or return it for a refund. In other countries, the return policy may be different. If you bought from a reseller, its return policy applies.

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Answer 4

sgginc

Level 3

676 points

Apr 14, 2014 1:54 AM in response to Macron 81

Things to consider:

1. Unplug everything except the power, monitor. keyboard and mouse.

2. Try a different user account.

3. Check the Console output at time of the wake sequence.

Thanks ...
Ken

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Answer 5

Macron 81 Author

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Apr 23, 2014 9:02 AM in response to sgginc

Okay thanks for all the help guys, I've discovered what the problem is but not how to fix it.

I unplugged everything but the bare minimum and the computer stayed asleep just fine. I then plugged everything in one thing at a time and tested. The culprit was one of my screens! I have an NEC Spectraview Reference 301 screen. It worked just fine on my old Mac Pro but when this screen is powered up the new Mac Pro will not stay asleep for more than 1 minute. My other screen is an Apple Cinema display and this works just fine on its own.

The solution for now is that I have to remember to hit the power button on the NEC screen before I leave the computer. This is fine but I'd love to find out what's causing this issue so I don't have to remember every time! I'm thinking maybe the NEC has some built in power settings so I'm going to fiddle with them now. If anyone else has any further ideas I'd love to hear them!

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Answer 6

Apr 24, 2014 6:46 AM in response to Macron 81

If those are conected via Thunderbolt they should not be on the same bus.

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Answer 7

Macron 81 Author

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Apr 24, 2014 7:42 AM in response to innocentius

Hi and thank you for your reply. Please excuse my ignorance, yes they are both connected via thunderbolt, but what do you mean about them being on the same bus? Do I need to plug them in differently somehow?

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Answer 8

Apr 24, 2014 8:27 AM in response to Macron 81

The Mac Pro has six thunderbolts. One bus is the left row from top to bottom. Second bus is the right row from top to bottom. I think they are called bus 1 an 2. If you have two TB displays. Connect one to the first row and the other to second row. Hope this explains.

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Answer 9

Macron 81 Author

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Apr 24, 2014 10:59 AM in response to innocentius

Thanks, I'll be back in my office tomorrow so I will take a look at how the screens are plugged in and report back!

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Answer 10

Macron 81 Author

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Apr 29, 2014 7:23 AM in response to innocentius

Okay so checked on the Mac Pro and both screens were on a different bus. Right now the computer itself goes to sleep just fine, but the screens both stay powered up for some reason. Any other suggestions?

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Answer 11

Apr 29, 2014 9:45 AM in response to Macron 81

And it does not matter what settings you have on display sleep settings in Energy save prefs ?

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Answer 12

Macron 81 Author

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Apr 29, 2014 10:00 AM in response to innocentius

That's right, whatever settings I try the screens will not go to sleep.

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Answer 13

Apr 30, 2014 8:34 AM in response to Macron 81

There is a good application since many years ago, Tinker Tool System. There is an option to put computer to sleep at chosen time. It works great for me. My new Mac Pro goes to sleep at exact the time I choose. Something to try ?

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Answer 14

Apr 30, 2014 8:39 AM in response to innocentius

Sorry your computer is not the issue. Some misunderstanding

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