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

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Posted on Jan 23, 2018 9:36 PM

I found that having "power nap" set on seemed to be the heart of my sleep-reboot issue. I didn't have the problem under HS until I turned power nap on and the problem ended when I turned power nap back off.

198 replies

May 24, 2018 7:34 AM in response to pcpclafferty

This is only a quick response to pcpclafferty, ahead of a more detailed update on my observations since going to 10.13.5 Beta. My guess is that yours is a portable, for which the default power management settings are different from those for desktops (in my case an iMac, 21.5, late 2012). In particular your standby = 1 and hibernate = 3 are both 0 on the iMac. It is my suspicion that these settings are involved in the whole messy saga, but I have no definite understanding how.


As a working hypothesis, it seems that the actual(!) effect of the parameter 'sleep' (presumably corresponding to computer/system sleep) might be related to the problem. It appears that before my updating to the Beta the effect of 'sleep' involved going into a state similar to 'hibernate', even when my hibernate setting was 0. Now this does not seem to happen, which probably means that my iMac does not effectively 'sleep' (although I have no way of establishing this).


Since upgrading to 10.13.5 Beta, more than 2 weeks ago, remarkably, I have not had a single SWF event!! With great trepidation a couple of days back I turned on the disksleep, which initially was not ticked, so that I only have display and system sleep, in order to have the minimum of parameters active. The computer was going to auto-power-off at night, as before, mostly at night, and waking up normally. I am not confident enough to attempt changing standby = 0 and hibernate = 0, as months of SWF experience, daily!, has still not healed the scars.


In short it is my guess that your, possibly, default standby=1 and hibernate=3 may be causing the same issue as the sleep before the Beta presumably changed the effect of the latter.


Many people on this discussion have mentioned that preventing the computer from sleeping somehow removed the SWF problem, so you might try to set standby and hibernate to 0, if you are inclined to verify that hypothesis. However, this can only be a temporary cure and certainly not a professional solution to a problem of such proportions.


Apologies if the writing above is not sufficiently clearly structured. Hope to write an improved update before long.

Jan 22, 2018 5:02 PM in response to Jan_b_300

Here is my tale.


I have MacBook Pro (13-inch, 2016, Four Thunderbolt 3 Ports) purchased in early February 2017.


After multiple failures to wake which was at the end not helped by NVRAM or SMC resets I took the computer to my local Apple Store. They were unable to get the computer to function and they accepted it for repair under warranty. When I got it back they had replaced the main board, the battery and the display; basically everything. The computer came back with MacOS 10.12.6 installed. Before I reinstalled ANY of my software the computer began to show Sleep Wake Failure. I now have turned off sleep and that is how I will continue to operate so that I can salvage some of my investment in this machine.


My first Mac was a 128K Macintosh. This MacBook Pro will be my last Apple computer. As demonstrated by this support thread and my own experience, Apple has multiple software and hardware problems with its current generation Macs and it is clear that they are both unwilling and more importantly UNABLE to fix these problems.

Feb 5, 2018 9:06 PM in response to McBeave

Adding on so that maybe Apple notices how many people are having this issue and does something about it...


Mid 2015 MacBook Pro on 10.11.6.


I don't think it's an OS issue, necessarily, but a hardware one as I have a Mid 2011 MacBook Pro that has been on everything from 10.7 up to 10.12 and it does NOT have this issue. It seems to be common to 2015 models as I have googled this issue and that one seems to show up the most.


This happens about once a week fairly reliably on the same day. Why the same day? Because that's the only day I remove it from being plugged in and take it elsewhere with me. It goes from a desk where it is attached to 2 external monitors and uses a USB Ethernet adapter for internet and then to another desk where it uses the wireless (the WiFi is turned OFF when it's at the first desk and is only turned ON after I log in at the second) and does not connect to any external monitors. In transport from one desk to the other, it is asleep. It does not reboot right away. Rather, it seems to reboot randomly anywhere from a couple hours after being moved to 12 or so. Usually this happens without my having interacted with it at all during this time. Just now, after not having touched the computer since I moved it at around 4:30PM today, it rebooted itself while sitting here with the lid closed and (supposedly) asleep.


This is a continued annoyance. I would also like to note that the rest of the week, as the computer sits in the same spot and is put to sleep rather than shut down every day, it doesn't reboot.


The reasons given for the reboots each time is sleep/wake failure. The usual fixes of resetting things doesn't do it. As it's happening on different versions of macOS, I don't think it's necessarily an OS issue, especially given that my 2011 MacBook Pro is not having this problem (it has other issues which I think I can attribute to the OS that amount to the Mac version of blue screening (something it never did pre-10.10), but that's neither here nor there since it's not a "sleep/wake failure" error...)

Feb 7, 2018 4:24 AM in response to McBeave

iMac (21.5 in, Late 2012) - Sleep Wake Failure after updating to High Sierra, currently Version 10.13.3


There are 560 responses to this comment, that is since mid December 2017, reporting the same issue. I have been reporting to Apple on an almost daily basis for about a month now. There is at least one other thread, discussing the same problem. All respondents are suffering persistent, disruptive and recurrent difficulties with their apple computers rebooting unexpectedly in sleep mode.


It is disgraceful that Apple would not even acknowledge the issue. This is an appalling attitude to mostly faithful and devoted customers.


So very disappointing!

G

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Sleep Wake Failure: Reboots only after upgrading to High Sierra

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