B2: Blank Screen Coming out of Standby

[martinocando]

Have you considered installing on a small partition so you can just play around with it while keeping it separate from everything else? I've done that in the past when I was hesitant. Luckily these days, all my work is done from a company owned computer that I can rely on, and my personal one really is just for fun. So I threw caution to the wind

I already did with B1, but dual booting just for testing is not really very practical for me, since I want to test with the apps that I use daily.

 

[dor2201]

How I do it ?

 

[martinocando]

How I do it ?

I actually installed it on an external USB3 drive. It was very slow, but gave me a glance on how it looks like. As I mentioned, not very useful for me, since I'd have to install all my applications that I use to be able to do a real test, so I only booted it up and played around with it a few minutes, and booted back to El Capitan.

I used a guide I found on a google search. There are several youtube videos on how to do it.

 

[blasto2236]

How I do it ?

Based on your earlier post, I assume you mean how do you run the Terminal command to see which kernel extensions you may have on your machine?

1. Go to Finder>Applications>Utilities, and open Terminal
2. Copy/Paste the following text in to the Terminal window: kextstat | grep -v com.apple
3. Press return
4. You should see a list of text here. Its not going to be in plain english, but look for the names of any programs you may have installed, and try uninstalling those programs.

Another user in this thread mentioned that he had kexts from an old BB phone. So there could be some in your system that are not related to an installed application. He may need to chime in with some help on how he eliminated those.

 

[jhfenton]

Another user in this thread mentioned that he had kexts from an old BB phone. So there could be some in your system that are not related to an installed application. He may need to chime in with some help on how he eliminated those.

I had 6 kexts listed when I ran kextstat. I saw the 2 problematic kexts from Blackberry and Duet and 4 that don't seem to be causing any issues, including two for Paragon Software's NTFS and ExtFS file system drivers.

I initially downloaded and ran BlackBerry's mac Desktop software uninstaller. But that didn't remove anything that I could tell. I probably ran it when I removed the software to begin with.

This page lists places to look and Terminal commands that could help remove offending BlackBerry/RIM files. I didn't have all of them. I would have noticed any rogue RIM or BlackBerry processes at some point. I look at processes in Activity Monitor all the time, but I seldom have reason to run kextstat or I/O Registry Explorer (an Apple Developer tool). I still have a hard time believing it was there. My BlackBerry days barely overlapped with this late 2012 Mac mini--though I do remember installing the BlackBerry software, so I know that they did. My system seemed to be performing well after my BB-free and Duet-free upgrade to Sierra b2.

 

[Chunk72]

Looks like Paragon NTFS is causing this for me on a 2015 rMBP.

 

[lapusan2011]

thank you!!!! I had a duetDisplay kernel installed, too!

 

[northdot]

I have a whole mess of login items, including BTT, but disabling all of them and restarting the Mac with no applications running has the same effect.

I do not have an Apple Watch
I am a registered developer
I use the standard resolution

I'm going to test in another user account and report back.

Edited: I created a new user account with no login items or startup programs whatsoever. Issue still persists. Since it does not happen in Safe Mode, I am convinced it is a kernel extension (which are also disabled in Safe Mode) that is causing the issue.

Edit: FIXED!!!

So it was a kernel extension, in my case from Duet display, which was installed on my Mac but not running. To see what non-Apple kernel extensions are running on your Mac, enter the following in Terminal:

kextstat | grep -v com.apple

For me, it showed Duet Display as the sole culprit. Uninstalled the program, restarted the Mac. Problem solved.

THANK YOU! I had the same issue - DUET was the culprit for me too. I am also fixed.

 

[crawltochina]

How do you remove duet?

I removed it with app cleaner. Duet cannot be found on my system. But if I type in the Terminal code above it shows duet as kext. How can I remove this?

 

[blasto2236]

How do you remove duet?

I removed it with app cleaner. Duet cannot be found on my system. But if I type in the Terminal code above it shows duet as kext. How can I remove this?

Not sure what to do if you used app cleaner. May need to look for a way to manually remove the kext itself using Terminal. I uninstalled Duet using the uninstaller that's built in to the app and it removed the kext as well. Maybe try re-installing Duet and then uninstalling using the app?

 

[jhfenton]

Looks like Paragon NTFS is causing this for me on a 2015 rMBP.

I'm not having any issues with Paragon NTFS v14.1.187, but my Mac mini also never goes into standby.

 

[grahamperrin]

… Duet Display as the culprit. Uninstalled the app, rebooted my Mac. Resolved. Updating my bug report w/ Apple …

… working for me too after uninstalling duet. …

No mention of Duet in the Sierra shortlist under Software that is incompatible with Mac OS X, OS X, macOS so I suppose that Apple fixed, or worked around, the problem.

 

[blasto2236]

No mention of Duet in the Sierra shortlist under Software that is incompatible with Mac OS X, OS X, macOS so I suppose that Apple fixed, or worked around, the problem.

Ha, I honestly haven't tried reinstalling it. Not for fear of the issue recurring, I just never found it all that useful. It's one of those things that's cooler in theory than it ends up being in practice.