MBP 16" 2019 CRASHES WHILE SLEEPING

I had this issue constantly on a new 2019 MBP 16 (2.4Ghz 8-core i9; 32GB RAM; AMD Radeon Pro 5500M 8GB; Intel UHD Graphics 630 1536 MB) after adjusting the power settings, I haven't had a single crash.

I've attached screenshots of my Energy Saver prefs, as this seems to have worked for me... I was super frustrated, so maybe this will help until Apple gets around to fixing the issue. Good luck.

StefanoFratini wrote:

I solved the issue by replacing the macbook. Amazon hopefully provided another machine.

First one was manufactured mid october 2019, actual one that I'm using mid december 2019 and it's working flawlessly.

Same identical specs, same backup, same everything.

I'm curious about when the panicking macbook pros 16 are produced!

This is interesting.

I experienced the problem with Power Nap enabled and my MBP was produced in late October 2019. Maybe it's just a small range of MacBook Pro 16" models which are affected.

EDIT: Manufacture date was obtained by using coconutBattery, unsure as to the accuracy of the manufacturing dates reported on this software.

Reposting because this fixed the issue for me on my 2017 MBP.

I was having crash/restart "Sleep transition timed out after 180 seconds while calling power state change" problems and found a fix that has made my computer operate as expected:

Completely erase HD using Disk Utility (Make sure you have a Time Machine backup). Reinstall OS X. Startup as a new computer fresh out of the box. When prompted, use Time Machine to install backup of Apps and User Data.

What didn't work:

1. PRAM Reset
2. SMC Reset
3. Recover Mode Disk Utility Repair
4. Recovery Mode Re-Install of OSX without HD erase

Yes, my Benq monitor has a docking station that, with a single tb3 cable manages:

• Hdmi out
• power in
• usb3 host for 4 usb devices.

Initially I used the 27” as my single big monitor (crash prob + performance prob), with my MBP closed, below the monitor.

Now I’ve bought a nice stand to keep my MBP16 high and open, and therefore using the 27” as a second screen.

To ease the fact that if I want to put my MBP in standby I must detach the tb3 cable, I’ve bought a magsafe-like connector (10Gbps/100W certified) for comfort and to avoid usb-c mechanical issues.

And it seems I’ve solved the kernel_task performance problem: it happened 3-4 times per day, with no apparent reason, now zero (over one week). I only suffer some problems with a Logitech Brio 4k webcam that sometimes works perfectly, sometimes becomes veery sluggish (from 60fps to 0.2fps...), either via usb3 host or directly connected to the mac (while the internal webcam works always ok). Probably Catalina has a serious problem with USB drivers...

Turning off Power Nap seems to have fixed the issue. No crashes today, at lease.

Thanks!

I had same problems (with an external BenQ monitor/docking station) and after a couple of weeks with 10.15.6 the operation is OK. With 10.15.5 I had a deterministic error: always.

Yeah, can guarantee it's not just your MacBook. As I said in a previous post:

ShadowDust99 wrote:

Power nap seemed to be the issue. Got off the phone to AppleCare team last night and they confirmed to me that it is a known issue specific to 16 inch MBP’s and engineers are working on a fix

I would say, the secret has been lifted. While "asleep" it would do iCloud syncs that cause stability issues. With the latest update, the problem should be resolved.

For those that updated, what is your feedback? Issue fixed?

I doubt if disabling Power Nap is able to fix the problem. This week it has happened to me two times when I am 100% sure there was no power cable attached so system was on battery and in battery mode nap is by default (and in my system) turned off.

It is rather something with switching from sleep to deep sleep mode (this is hibernate). It is possible to turn it off, and some fold really did with good effect but this obviously shorten time when system is able to work on single battery load.

I can see that this problem is somehow dependent on MacBook Pro - no-one with other model ever reported the problem.

It looks like Apple has released a supplemental software update today for macOS. I'd suggest installing the latest update to see if it has fixed the issue.

I have to reset the SMC, after I upgraded my MBP to 10.15.5

Now its working fine

Install 10.15.6

ccassino, can you tell me if you have power nap enabled for both battery and power adapter in system preferences>energy saver?

Yes, I have the same model and am having the exact same problem with exactly the same crash report message.

I've tried all the usual crashing advice (e.g. SMC reset, reinstall OS) and it's had no effect, this MBP 16" is still crashing on a regular basis after closing the lid.

This issue only seems to have started for me after upgrading to Catalina 10.15.4. My guess would be that it's a software issue in the latest update rather than an issue with your specific machine.