Kernel Panic on 16" i9 MBPwRD

Same problem. I do have an apple refurb 2019 16" I9 32 gb Vram 8gb 1tb. I've had this computer for 5 days now. Woke up to the kernel panic error this morning. Fans were running crazy last night after a long FaceTime session then did some LR editing. I'm not at all familiar with code, tech errors, etc but wanted to thank everyone on here who is!

Just disabled power nap on both battery and plug in power. First time MacBook owner, was pretty excited to switch from PC and integrate fully into ecosystem. But at $3k I don't like to see these kind of messages in the morning!!

Yep, and confirmed it still crashes with power nap disabled on both battery and wall power sources (it’s disabled by default on battery). FWIW, it didn’t seem to change the frequency of crashes for me at first, but after methodically testing ~10 different settings in system prefs, I reset all energy settings to default, disabled power nap again, and went ~4 days without a crash. A few days ago, the panics kicked back up, and while it’s still a bit early to draw a conclusion, it does still seem to happen more often with power nap enabled...

Thanks for checking though — I definitely recommend others try it exactly as you outlined, especially as several people have reported success in this thread.

It just happened on my new 3 day old MacBook Pro 16" i9 (64GB RAM, 8GB GPU, 2.4GHz), I updated to Catalina 10.15.4 yesterday and today in the evening I put the macbook to sleep, 1 hour later it had an unexpected reboot. The macbook is connected and charged through usb-c from Dell U2720Q. I didn't change any power related settings, other than enabling always-on USB-C charging on the Dell monitor. I submitted my crash data - FB7676439.

I believe that I'm having the same issue with my 2019 16-inch MacBook Pro. I've been in contact with Apple Support and I've had two kernel panics since trying a clean MacOS install this past weekend. I submitted a feedback report today with both panic logs and sysdiagnose packages: FB7678326.

I've attached the crash reporter logs from today. One occurred with a Caldigit TS3 dock with a Dell 2720Q display connected using USB-C. The other occurred a few hours after with only the apple power cable connected.

Agreed — looks like disabling power nap significantly reduces the frequency of crashes while transitioning between sleep states, but I still get a crash every week or so.

I still have a Feedback Assistant case open that *seemed* to have some momentum; I collected verbose logging and gave steps to reproduce the bug, but I haven’t heard anything since April 24th. I’ve asked them and AppleCare for updates, and for them to publicly disclose this known issue, but the silence is deafening...

I am glad that you pointed this out. Apologies for my carelessness reading that article, and you're right about its misinterpretation on error messages. It is quite possible that the author came up with that guess because KP mostly happens on MacBook Pro 16'' (i7 or i9), which is also the only MacBook Pro (current generation) with dual graphics cards. Although we cannot fully rule out the possibility of GPU issue, clearly the author cited the wrong case and nothing about GPU could be inferred from that error log.

BTW, my error message is all the same, except that my Mac OS version is newer (macOS Catalina 10.15.4 Supplemental Update (19E287)).

Bug report on Mr. Macintosh blog is probably the most precise and up-to-date one about this KP issue. It avoids potential errors by simply (but accurately) describing problems, instead of making ambiguous guess about the cause. In fact, It is quite impossible to confirm any specific cause from the error report (If not an Apple engineer).

The whole blog is awesome, too. Thank you for recommending! It helps a lot!

So I talked to apple once, again. It is important that as much feedback as possible is reported with the problems. Only with quantity Apple sees the problem as acute.

Product Feedback - Apple

I am keeping track of this issue here.

https://mrmacintosh.com/10-15-4-update-wake-from-sleep-kernel-panic-in-16-mbpro-2019/

FYI, disabling power nap does *not* stop panics for me, although it seems to reduce the frequency...

A guy in another thread saw this when using Google drives sync... it was always Google drive that caused his reboots. I think it is heavy load, and not one specific applikation.

Yes. Powernap is the bug that apple needs to fix

I found this, and I think I have the same thing and will be calling Apple:

https://discussions.apple.com/thread/8567772?answerId=251132260022#251132260022

It's not fixed in 10.15.5. I'm still seeing this consistently on my 16" i9 MPB.

Same thing here.

You can leave your lid closed, but before lock the MBP or stopping using it, you need to remove the monitor cable.