Sleep Wake Failure with High Sierra 10.13.4

Since installing 10.13.4 on both of my iMacs, I have noticed a Sleep Wake Failure on my 2012 iMac.


Once it has gone to sleep, it will display the log in screen, I enter my password and it will hang. The only solution is to hard reset the system, where it will "bong" twice before presenting me with the login screen (NB: It is File Vault enabled).


This did not happen until I installed 10.13.4 prior to that it was working perfectly.


I don't seem to get this error on my 2017 iMac.

iMac (27-inch, Late 2012), macOS High Sierra (10.13.4), FileVault enabled

Posted on Mar 31, 2018 2:15 AM

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Posted on Apr 4, 2018 10:58 AM

Are you using FileVault?


From my tests, it seems that 10.13.4 cannot wake up properly if your disk is encrypted with FileVault. 😟 The result is a black screen if you wake by keyboard or mouse (or rarely a non-responsive login screen).


If you press the power button to wake instead of using the keyboard or mouse, the iMac will turn on, turn off, then turn on again to perform a cold boot.


With FileVault turned off, it wakes perfectly every time.


Anyone on 10.13.3 reading this: if you need disk encryption, do not install the 10.13.4 update!

126 replies

Apr 25, 2018 2:26 AM in response to Variag@BW

Hi, I was very optimistic with yesterday’s security update. I turned sleep back on and left the computer alone. After about 3 hours I heard it restart all by itself with 2 startup chimes, an Apple logo, progress bar and a grey login screen. So sadly didn’t work for me. I don’t understand why pride cannot be swallowed and Apple can’t think of customers who have given them thousands of pounds/dollars to ‘benefit’ from a good user experience.

May 3, 2018 2:44 PM in response to MotoMcLovin

MotoMcLovin wrote:


Does anyone know a rough time frame of when we should expect OS 10.13.5?

Also, I've noticed my startup screen is now grey instead of the usual blurred background when turning the computer on. I'm sure this has been since the last security update. Is this normal?


It better not be soon because this sleep-wake issue is still on beta 3. It seems each update release fixes something and breaks some new stuff.


10.13 is probably one of the worst OS I've seen. It is enterprise "unfriendly" or even "hostile" and buggy (#iamroot anyone?). I rather fall back to 10.12 if I can choose again.

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Sleep Wake Failure with High Sierra 10.13.4

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