MacBook Pro doesn't sleep when lid closed after updating to Mojave 10.14

I have the same issue. The issue exists even with battery mode. The system doesn't do anything when close the lid. Need logout and re-login. What a broken update(updated to Mojave 2 days ago). My $2000 2016 MBP is like a cheapie now.

Mojave has sleep prevent issues when closing the lid and I couldn't find the reason. I have also another macbook pro for the work and it has very simmple app portfolio, no 3rd party tools only MS office etc. It has same issue sometimes. Logs did not help. Nothing seems to prevent sleep on activity monitor.

OK, with a mid 2012 MacBook Pro 13" I started up in "safe" mode. No change. Still has the hard driving humming away when put to sleep. Perhaps the new OS is made for SSD drives and not our old fashioned mechanical drives?? DEFINITELY an Apple problem.

Everyone, it seems earlier in this conversation the problem was solved by one of the commenting users already, his solution worked for me as well (on a mid-2012 13" MBP which has an SSD for the system), try this:

jakefromXOct 2, 2018 2:41 AM

The same problem too. I solved the problem by deleting the file below.

DGVirtualDisplay.kext

I could not see where this file was used. However, it goes into sleep mode.

I don't have the file on my MacBook (Retina, 13-inch, Late 2013 with SSD) ...how did the OP originally zero in on this file? Perhaps that might give us others some characteristics to look for on our machines.

Op has posted the answer when detailing his crash report, mine was also in the folder: *systemdrive*/Library/Extensions/DGVirtualDisplay.kext

I hope this helps. OSX Finder doesn't look in this folder (it might be even hidden for you guys, but it's there...)

As noted in a prior post I started in Safe mode - same problem. Also note that starting in Safe mode takes a little time - I seem to remember about 20 minutes.

Also I have no Extensions folder in my Library. Individual app folders (mostly browsers) have an extensions folder in them, but none on mine like you have. In fact I have no kext files in my Library, or at least they wouldn't appear in a search.

It also worked for me (MacBook Pro 13" retina late 2013).

After deleting DGVirtualDisplay.kext (~/Library/Extensions/DGVirtualDisplay.kext) and restarting my mac, it goes into sleep mode perfectly.

DGVirtualDisplay.kext seems to be a file for app named Twomon PC Program.

It's also called TwomonUSB and it's an application for dual monitors using tablets.

Perhaps other apps for dual monitors might also cause this problem.

One reason why Cisco makes sense is that the notification agent was one of the extensions. Notifications are one thing that could wake the computer from sleep. Go into your System Preferences Notification to disable all Notifications that require popup windows.

After the upgrade to 10.14.3 i noticed a little improvement with sleep issue on my MBP Retina.

when i quickly close the lid, after 2 sec the laptop wakes up (with the lid closed). if i close the lid slowly it remains in sleep mode (even if it's connected with the charger). did anybody try this?

Hope this trick will help those who had the sleep/wake issue.

Same problem, but I'm still in High Sierra. 15" 2012 MBP. I've got some additional information, you know how startup on an SSD is slow at first while it learns the system? I noticed that the sleep problem happens only after this process is complete.

Use Activity Monitor App to discover what apps that may be preventing Sleep:

Not having Sleep related issues with my Early 2015 MacBook.

VirtualBox if running might also affect whether or not the machine sleeps, as it tries to emulate other environments simultaneously.