IMac Pro refuses to sleep with 10.13.4

Updates to 10.13.4 and my iMac Pro refuses to sleep. I have three LaCie T3 RAIDs connected. All was well with the prior OS versions. I have my Energy settings set appropriately. Now when I sleep, the Mac and drives all spin down and start sleeping. But after two seconds the system automatically wakes up. Tried three times. Same result. Anyone else seeing this?

Posted on Mar 29, 2018 6:23 PM

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Posted on Jun 2, 2018 12:24 PM

Three comments on the constantly waking from sleep problem with the iMac Pro. (1) I have an iMac Pro 10-core, 128 GB RAM, 2TB SSD, Radeon Vega64 Pro (16 GB) that began repeatedly waking up after the 10.13.4 update. (2) After hours of trying to resolve this issue, I checked Console>Mac analytics to see what was going on that was initiating these wakeup sleep cycles and found that it was my ethernet network even though I did not have Wake for Network Access checked in Energy Preferences. I Googled the exact wake error found in console and dsicovered

that many others were reporting this issue and the only solution was to disconnect the wired ethernet and use a wireless connection. When one does this the constant wakes from sleep cease immediately and sleep works perfectly on my iMac Pro. (3) the latest OS update (10.13.5) does NOT solve this problem.


This problem has been submitted as a bug report to Apple by others at least two months ago (and by me) and Apple has done nothing to resolve the issue which leaves the 10 GB ethernet port on the iMac Pro useless if you ever want to put the computer to sleep.


I urge those of you who have not done so to submit a bug report to Apple and hopefully one day Apple will decide that the iMac Pro is worth supporting and fix this issue which they themselves created in the 10.13.4 update.


Tom

40 replies

Apr 1, 2018 5:02 AM in response to as_909

I suspect it's just the new 10.13.4 update. I'm seeing this too but don't have any powered external drives connected.


From /var/log/powermanagement in Console:


"Entering Sleep state due to 'Maintenance Sleep':TCPKeepAlive=inactive"


The above entries are followed about a minute later by:


"DarkWake from Normal Sleep [CDN] due to EC.WoL XGBE/Network"


And then the cycle repeats. I have a USB mouse with an LED-illuminated middle button, and I noticed that it would turn on about two seconds after putting the system to sleep, then turn off about a minute later, then on again, ad infinitum.


I hadn't tried placing my iMac Pro to sleep before the 10.13.4 update, but will have to continue powering it off at night.

Apr 9, 2018 12:30 AM in response to as_909

Yes, got the same issue here. Machine doesn't sleep after update to 10.13.4 (17E199).

Got the 'initiator' by typing this into the console: log show --style syslog | fgrep "Wake reason"

Result: EC.WoL XGBE (Network)
Returned to wake state immediateley after sleep.

So, is the only way to safe some power while not at the machine, is to buy an additional usb network adapter on a $6000 iMac Pro? 😠 (very angry)
Does Apple not test their fixes/updates??

Also (another not fixed fault): The background paper -still- does not being remembered. Always had to change it after every reboot. (and the 200 GB copy error is STILL present 😠)

Aug 5, 2018 8:24 AM in response to CromeYellow

Finally got the machine back after over a month at the Apple Store, they replaced the logic board - twice (first one that came in was itself defective), and the power supply.


Had the machine a week now and seems all is well. One morning I was a little concerned when the display would not wake up from sleep until I tapped magic mouse repeatedly, but since that one morning, just one tap, wait a bit, and it wakes from sleep fine. There have been no freezing issues, and my machine does go to sleep on its own fine.


If relevant, my internet connection has always been hard wired ethernet.


Mine is the 2.3 Ghz 18 core version with internal Apple 4 Tb SSD - the only external I have attached is being used by Time Machine, connected via USB-C a 4Tb G-Tech G-Drive.

Aug 20, 2018 8:03 AM in response to as_909

I have the same issue. I have pagesus R4 thunderbolt 3, G-technology raid 2 thunderbolt 3, Samsung t5 ssd Akitio t3 raid. All wake up every 2-3 minutes when the iMac Pro is sleeping (screen is dark). Apple support (stupid support in Singapore ) asked me to submit Apple capture log after several reformat. This continued for three months. Finally they said me to disconnect all external drives and take the log and closed the case stating Apple engineer did not find any issue. So my question is did Apple acknowledge the issue and if yes , who did they confirm that the issue will be resolved by os 10.14?

My external drives cost more than my iMac pro. I don’t want the Mac to kill and degrade spinning drives.

Even I purchased Apple care but the support in APAC is worst.

Aug 25, 2018 8:34 AM in response to Raj098

Andy,


To join the Apple developer community you need to go to this web site: https://developer.apple.com

Click on sign in, provide you Apple ID, and then agree to the terms hat Apple has for developers. You will then be able to download the beta version of Mojave. Please note that I have not installed any beta software on my iMac Pro so I cannot verify that Mojave does resolve this issue. I have posted this issue previously and no one who has installed the beta version of Mojave and who has a raid system attached to their iMac pro has confirmed that Mojave resolves the issue.


Tom

Oct 3, 2018 5:52 PM in response to TomWheel

I can confirm that Mojave (final release version) does fix the issue. In my case I have the same setup as what I had when the problem first arose. An iMac Pro connected to wired Ethernet. Then, a Thunderbolt 3 LaCie T3 RAID connected, then two additional LaCie T3 RAIDs daisy chained. Sleeping once again works a-ok as it use to.


Prior to updating to Mojave today, I updated to the latest version of the LaCie RAID manager software and ensured all RAID firmware was up to date.


I sure hope 10.14 fixes the issue with sleep with other vendor hardware. I can only speak for LaCie Thunderbolt 3 devices (one 6big and two 2big).

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IMac Pro refuses to sleep with 10.13.4

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