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Level 1

50 points

Sleep Wake Failure: Reboots only after upgrading to High Sierra

I have spent the last month dealing with the sleep wake failure ordeal.

When High Sierra was released I took the upgrade like I always do. When my iMac goes to sleep I will be in the other room and can hear my system rebooting. The startup sound plays twice. Then the apple logo appears on the screen with and progress bar (as if something were installing) Once High Sierra starts it displays a message "Your computer was restarted because of a problem. "Sleep Wake Failure"

I have contacted Apple support on several occasions with no luck.

I have unplugged the cord - removed it from the computer for 15 seconds to reset the smc

I have reset the NVRAM

I have backed up my system using time machine and used disk utility on internet recovery to erase my iMac

I have done a fresh install of Mac OS (High Sierra) with Time Machine backup and a separate time without a backup

I have started in safe mode

Mac OS High Sierra 11.0.3

Even after doing all these tasks my iMac still reboots when in sleep mode.

I have had my iMac for several years and this has never happened before. Now it cant stop happening.

Any help would be greatly appreciated.

iMac, iOS 11.0.3

Posted on Oct 27, 2017 9:43 AM

Best reply

Paravis

Level 1

14 points

Posted on Oct 31, 2017 6:46 AM

Same thing going on here. In my case, I have a MacBook Pro late-2013 15" with Retina. Recently upgraded the SSD to the OWC NVMe Aura Pro X, which is unbelievably fast ... And, everything works beautifully.

EXCEPT when I put the laptop to sleep. At some point during the sleep, something "happens" and then when I go to open the lid to the MBP, it immediately does the startup sound, black screen for about 10 seconds ... Then a second startup sound, black screen for about 10 seconds, then the Apple logo and the bar. After that, everything works perfectly.

Someone had mentioned on another forum that this issue is potentially due to the NVMe drive not being 100% powered up in time for the SMC to find it, and so it then just does a hard reset until the storage device is available.

For me though, I don't get any error message. Nothing in any of the system logs, either. It's as if nothing "bad" even happened. So, it is very baffling. Would imagine Apple knows about this, hopefully they come up with a fix ASAP.

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198 replies

May 24, 2018 11:56 AM in response to bobt9

that will teach me to take sudo commands from strangers 🙂

how do I reset to an earlier configuration?

ghogoh

Level 1

4 points

Jul 29, 2018 3:07 AM in response to McBeave

It has been a while since anyone posted here. Have you guys had the problem sorted now? Please share if so.

Jul 31, 2018 1:53 PM in response to katfrommars

Anyone found any solutions yet?

Would like to keep this thread alive so we can eventually all solve our problem.

Sleep Wake Failure: Reboots only after upgrading to High Sierra