Hi Everyone i am getting the error below and my computer wont login. i have the new 2019 16in its less than 3 . weeks . old.

I am having the same issue. When I reboot the progress bar gets to about 70% and then the fans whir for about 1 second then the machine restarts and it just keeps doing it. When I restart in safe mode I get this error report.

panic(cpu 2 caller 0xffffff7fa338ca97): GPU Panic: mux-regs 5 3 7f 1f 0 0 severity 3 WS-ready 0 switch-state 13 IG FBs 0 EG FBs 0:1f power-state 0 3D idle HDA idle system-state 0 power-level 20:20 power-retry 0:0 connect-change 0 : PowerPlay Failed to Initialize.

Backtrace (CPU 2), Frame : Return Address

0xffffff821d573500 : 0xffffff801f33bb1b 

0xffffff821d573550 : 0xffffff801f4733e5 

0xffffff821d573590 : 0xffffff801f464e5e 

0xffffff821d5735e0 : 0xffffff801f2e2a40 

0xffffff821d573600 : 0xffffff801f33b207 

0xffffff821d573700 : 0xffffff801f33b5eb 

0xffffff821d573750 : 0xffffff801fad24f9 

0xffffff821d5737c0 : 0xffffff7fa338ca97 

0xffffff821d573820 : 0xffffff7fa36a214d 

0xffffff821d573aa0 : 0xffffff7fa3670128 

0xffffff821d573ae0 : 0xffffff7fa36a124a 

0xffffff821d573b30 : 0xffffff7fa367433a 

0xffffff821d573b90 : 0xffffff7fa2f9d44c 

0xffffff821d573c10 : 0xffffff7fa2f93c0e 

0xffffff821d573ca0 : 0xffffff801fa1460b 

0xffffff821d573d00 : 0xffffff801fa6f0c9 

0xffffff821d573d60 : 0xffffff801f4226ef 

0xffffff821d573db0 : 0xffffff801f341998 

0xffffff821d573e10 : 0xffffff801f318625 

0xffffff821d573e70 : 0xffffff801f32f0d5 

0xffffff821d573f00 : 0xffffff801f44b485 

0xffffff821d573fa0 : 0xffffff801f2e3226 

I‘ve the same Problem. MBP stop to work, on reboot at ca. 70% it stop - fans blow up - reboot.

I tried SMC Reset, NVRAM Reset, repair the FS with desaster recovery. Reinstall macOS - without any effect.

The MBP boots without problems in single user/safe mode - crashreport is nearly the same as above.

I‘m now going to reinstall and transfer my files back to my previous MBP 15“ mid-2019.

Has someone an solution for this problem, or is it really a hardware problem and can only be fixed by swap logicboard?

I spent 3+ hours on the phone with Apple Support. They logged into my machine. I had already rebooted and wiped my drive. They looked around for a while but in the end concluded it was hardware. I returned since I was within my return window and got a new one. I've read that it is either the T2 chip or the GPU. I had the higher end base model with the 5500M 4GB but I'm not sure that matters. So far my new one (slightly upgraded) is ok but every time I boot I cross my fingers.

Same problem here. Started happening 1 time per day and now its multiple times. Seems to happen only when awaking form sleep.

Let us know if the new one fixed it. Im hoping this is not hardware related and I will have to go through the headache of replacing this.

I have no news about my MacBook, it is still in repairs. Just wanted to share it's specs to see if we can find similarites. I've noticed that the people who do announce their specs in regards to this problem (in this forum post and in others that I've seen) seem to have the 5500M GPU, so I'm wondering if that is the cause of the problem...

Anyway, my specs are:

8-core i9 2.3GHz

32GB 2666 MHz DDR4

1TB SSD

Radeon Pro 5500M 4GB GDDR6

Apple engineering is currently looking at my issue since they have had all the diagnostics at this point. They are not convinced its hardware is at fault since it does boot in safe mode. My error is slightly different. I get:

panic(cpu 0 caller 0xffffff7f91021a97): GPU Panic: mux-regs 4 3 3f 1f 0 0 severity 3 WS-ready 1 switch-state 0 IG FBs 1 EG FBs 0:0 power-state 4 3D idle HDA idle system-state 2 power-level 5:0 power-retry 0:0 connect-change 0 : PowerPlay Failed Resume.

So far the temporary work around has been in System Preferences > Energy Saver > Power Adapter > Prevent computer from sleeping automatically when the display is off, setting that ON.

The error seems to occur when coming back from sleep (at least for me anyways). Apple is supposed to get back to me to let me know whether to send the machine back or wait for a software fix.

My specs are:

8-core i9 2.4GHz

64GB 2667 MHz DDR4

2TB SSD

Radeon Pro 5500M 8GB

Been on the phone all week with Apple support. Their engineering wanted me to remove the following software to try:

Dropbox, LittleSnitch, CleanMyMac, iStatMenus, and Dropbox (Virtualbox)

I am suspect that these have nothing to do with the panic issues. Dropbox was more or less a laugh as it has nothing to do with the software at all. I thought i would post this here and see if others have anything in common with this. I am waiting for the panic to occur as its very intermittent, many times taking overnight for it to occur. I will post back on results after a few days.

However, this seems to be a lot more prevalent of an issue. This is a review of te MBP 16" on Dec 10, 2019, and at 11:40, the guy talks about this problem:

https://youtu.be/q--7N-4zDps?t=700

UPDATE: I created an external boot drive that has NOTHING installed. Within a few hours, I got the GPU panic and sent the capture files to Apple. So this has nothing to do with any software that has been installed by me because there is none.

Lets see what Apple Engineering has to say.

I have the same issue as well with the "PowerPlay failed to resume." I bought this computer in late November and this issue only seemed to start happening within the past few days. I'm currently testing to see if I can reproduce the issue under safe mode. If it is indeed a hardware issue I guess I'll have to visit an Apple Store and take it up with them.

This guy did an update on Youtube... seems to be having the same experience with support of the issue.

https://www.youtube.com/watch?v=yAAHjE5U6Ow

Apple engineering seems to be lost on the problem. I won't have any update until 1/26 because my support engineer went on vacation. So I get to deal with multiple daily reboots on this until then :-(

I sure hope someone here stops back with some good news. I'm about ready to do a chargeback on my credit card and force a full return from Apple for a defective product (yes I'm outside the 15 day return window, but my CC company usually will side with the buyer, especially in this instance).

I have the exact same specs and my machine kept restarting when I open the lid. I have since returned it and awaiting replacement. I read somewhere that some apps that may not be updated to meet Catalina's 64-bit compatibility could be causing the issue - but can't say for certain. Last I checked, Dropbox and Adobe Creative Cloud were part of the apps (both that were installed at the time of the reboots) that weren't updated yet. Might try to use the computer for a day or two without any third-party apps installed to see if that helps.

So I completely erased my Mac and reinstalled the OS from scratch and I'm still having the problem. The only thing I can think of now is that unchecking the "automatic graphics switching" button in settings might help, but that's all I've got for now. If nothing else helps, I'm going to say it's a hardware issue and just mail it in to Apple.

I still see it today same GPU panic crash every single time I open lid. Apple should address and send a software update to fix for all machines affected by this bug!

If anyone gets a response from Apple please post it here. Thanks.

philux wrote:

Macbook Pro 2019 16" crash on sleep and force restart related to GPU Panic.

<macOS Crash Log.log>

<EtreCheck Report.log>

I'm not familiar with some of the items installed, but you should uninstall CleanMyMac by following the developer's instructions. Anti-virus and cleaning apps are not needed on a Mac and they usually cause more problems than they solve plus they impact system performance.

I'm not saying this is the cause of your problems here since so many other people appear to be having these panics, but it may help down the line.

CMM has absolutely nothing to do with this... this was tried along with fresh installs of Cataline with NO additional software. There is a serious bug here and its becoming widespread. Right now, I'm leaning towards hardware because a friend of mine has the exact same machine as me and zero panics. Same OS, same firmware on the graphics, cards, etc. Yes, he uses CMM too.