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Batfink1983 Author

Level 1

66 points

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

Best reply

ernie98

Level 1

9 points

Posted on Apr 3, 2018 6:51 AM

I am having the same issue with my 2017 iMac. It started right after installing Mac OS High Sierra 10.13.4. Instead of sleeping, it goes into a sort of comatose state. When I try to wake my iMac, I get a black, unresponsive screen. At this point, I have to use the power button to do a hard reboot.

Other times I get a log in screen, but the mouse and keyboard are unresponsive, so I have to do the hard reboot anyway.

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Sleep Wake Failure with High Sierra 10.13.4

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