Your computer was restarted because of a problem

I'm connecting my external screen using a USB C cable, and have a couple of disks attached to it via USB C.

The external screen / USB C may be the issue, I don't think it's the USB C dock.

My crash report looks pretty much like yours and I suspect it's the graphic adapter driver not coping with power saving (power nap, in this case) correctly, especially since all the crash reports I've seen seem to pin the blame on com.apple.iokit.IOGraphicsFamily.

I disabled power nap, (System Preferences->Energy Saver->Enable Power Nap while...) and it seems to work around the issue.

I try to re-enable it after each update - only to disable it again when I realize the issue was not resolved (10.15.5 was the latest attempt).

While power nap is not a very important feature for me, it's pretty much annoying that it can't be used with the top of the line brand new MacBook Pro 16", especially since this issue has been happening to so many people for so long.

Quick follow up, after I disabled power nap, issue newer came up again.

thereitis1 wrote:

Brand new Macbook Pro 16". When I sleep the computer, it regularly restarts and I get the error your computer was restarted because of a problem.

<Crash report.log>

<2nd Error Report.log>

There are more and more reports of the 10.15.4 and sleep/crash issues .

I suspect you can anticipate a supplemental update or wait for the 10.15.5 update to resolve a software issue.

please submit your Apple Feedback http://www.apple.com/feedback in an effort to expedite this resolve.

This was happening to me and seemed to be related to Google Filestream (I don't have many apps installed and its a new 16" MBP.

Research led me to look at power nap which allows the mac to check for cloud-based items when asleep.

Turned it off and seems ok, for now - will update if that changes.

Hmmm a lot of users are experiencing the same issue here with their MBP 16 inch. Their error logs are very similar Too.

you can download etrecheck from the Mac App Store and then choose your error and select start. It will then scan for potential errors that could have caused the issue. After it’s done, click on the TOP right “share report” and select copy report. Then send the report here as “additional text”.

then we can see if any other user can help to read the error log.

start with uninstalling </Bitdefender>

thereitis1 wrote:

Brand new Macbook Pro 16". When I sleep the computer, it regularly restarts and I get the error your computer was restarted because of a problem.

<Crash report.log>

<2nd Error Report.log>

Learn what to do if your computer restarts or shuts down unexpectedly, or you get a message that your computer restarted or shut down because of a problem.

If your Mac restarted because of a problem - Apple Support

Thanks to another Apple Support Communities thread, I managed to find an answer that worked for someone and for my 13-inch MacBook Pro.

Go to system preferences>energy saver and do the following for both battery and power adapter:

1) Disable auto graphic switching

2) Turn off Power Nap

I have the same problem with almost identical crash reports. Was hoping the additional

10.15.5 update would fix this problem but it did not.

After following the steps from the Apple Support page I discovered the problem only occurs when connected to a USB-C adapter. When connected and in sleep mode the fans start spinning loud after about 5 minutes and than it shuts down. This does not happen when no USB-C dock is connected. Nor dit dit before the 10.15.4 update.

I am using a Baseus USB-C adapter to connect my screen, Wacom and keyboard.

Really hope this gets fixed with the next update.

I have the same issue, Catalina 10.15.4 + MacBook 16".

Does not happen on my MacBook 15" late 2016" (also Catalina 10.15.4).

At first, I thought it was something with my old software (I restored it from a time machine), so I did a clean install.

No third party extension, only have software from the Mac app store, nothing special - and yes, same crashes.

My computer is usually connected to a power source.

There is something wrong with Catalina + MacBook 16", posting generic posts about reseting the SMC, or apple knowledge base about generic stuff to do when your computer crashes won't help.

It's something Apple needs to work out, from what I gather it's a problem with sleep mode and the graphic adapter, so updated drivers should fix it, but it's been this way for a while now, doesn't look like apple is very good at fixing these things.

If we all "report" these issues using the report button, it may help.

Have the same

MBP 16 increases coolers speed, then turn off external display and then reboot.

Kernel Extensions in backtrace:
         com.apple.iokit.IOGraphicsFamily(576.1)[B1C0006F-E1F5-37D9-9548-5F918E92B422]@0xffffff7fa17dc000->0xffffff7fa182cfff
            dependency: com.apple.iokit.IOPCIFamily(2.9)[BE052F4D-9B80-3FCD-B36D-BACB7DEE0DF2]@0xffffff7f9e512000

It may be Dropbox. The only way to tell is to uninstall it and see if the panics stop.

Follow the developer's instructions or uninstaller.