macOS Sierra Public Beta – Sleep Wake Issue Fix

If you are having an issue with your mac waking from sleep after upgrading to the Pubic Beta of macOS Sierra (like I did) AND you have Duet installed, this is what I did to fix it. This problem may be attributed to other apps that have some kind of display driver associated with them.

I completely uninstalled Duet (or so I thought) as was suggested on many articles I found online.

After uninstalling, I was still having the issue. After a bit of digging around I found there was still a key piece of Duet hanging around.

I have to remove the Duet .kext file that was still in the following location:

/Library/Extensions

After removing this, and rebooting, things looks to be good to go!

This was all on my ‘Early 2016 MacBook’. I did not have this issue on my Late 2014 27″ iMac that did not have Duet installed.

15 thoughts on “macOS Sierra Public Beta – Sleep Wake Issue Fix

  1. I don’t have Duet installed, but I still get the issue. Could I send a screenshot of all my applications (or a list) and you can help me find out what’s the problem? I used to have Splashtop installed, though I don’t know if there’s still anything lying around from it. You can’t properly uninstall Splashtop from the program.

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    • I’ve still got Creative Cloud, Wine, GeekTool, Microsoft Remote Desktop and Tinkertool installed. Are any of those the problem? Just guessing that these programs are part of the problem.

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  2. I’ve got the official Sierra installed (not beta). My system frequently will not stay asleep, wakes 2 seconds after I Sleep it. I’ve also been having an issue when I wake the system where I no longer have Wi-Fi connected and have to cycle my modem and router to get the network connected again.

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