The computer was restarted because of a problem.

Hi everybody

I've got the same 'Panic' problem like you too. My brand new MacBookPro 16" 8-core intel core i9 I bought in April 2020 makes a hissing vent sound after waking up opening the lid trying to restart and shuts down. Because installing the latest upadates of Catalina 10.15.4 and 10.15.5 did not help, I did a clean install of Catalina and erased first my HD. But no succes, same issue occurs. Chrome for me is not the problem...because I uninstalled it and also erased manually all traces of the app, but never the less it still happens... l Guess we have to wait for the Apple-programmers to find a cure for their own "Maccorona".

Here is a part of my thread I keep sending to Apple every time I open my Mac to start working:

panic(cpu 0 caller 0xffffff7f919c6983): GPU Panic: mux-regs 5 3 7f 1f 0 0 severity 3 WS-ready 0 switch-state 0 IG FBs 0 EG FBs 2:0 power-state 0 3D idle HDA idle system-state 2 power-level 5:0 power-retry 0:0 connect-change 0 : PowerPlay Failed Resume.

Backtrace (CPU 0), Frame : Return Address

0xffffff872305b700 : 0xffffff800d91f5cd 

0xffffff872305b750 : 0xffffff800da58b05 

0xffffff872305b790 : 0xffffff800da4a68e 

0xffffff872305b7e0 : 0xffffff800d8c5a40 

0xffffff872305b800 : 0xffffff800d91ec97 

0xffffff872305b900 : 0xffffff800d91f087 

0xffffff872305b950 : 0xffffff800e0c27cc 

0xffffff872305b9c0 : 0xffffff7f919c6983 

0xffffff872305ba20 : 0xffffff7f91ceb37b 

0xffffff872305bca0 : 0xffffff7f91cb74d4 

0xffffff872305bcd0 : 0xffffff7f91ceacf8 

0xffffff872305bd00 : 0xffffff7f91cd2b3f 

0xffffff872305bd20 : 0xffffff7f91cd2a65 

0xffffff872305bd40 : 0xffffff7f91cd2921 

0xffffff872305bd70 : 0xffffff7f9159efaa 

0xffffff872305be10 : 0xffffff7f9159ed08 

0xffffff872305be40 : 0xffffff7f915a5aeb 

0xffffff872305bee0 : 0xffffff800e02e60d 

0xffffff872305bf30 : 0xffffff800e02cede 

0xffffff872305bf70 : 0xffffff800e02c4d6 

0xffffff872305bfa0 : 0xffffff800d8c513e 

      Kernel Extensions in backtrace:

The GPU panics occurred since day 1 of purchasing this laptop before I installed anything. The Saffire driver was just installed recently and the GPU and CPU panics pre-date that and mimic the issues experienced by many others. Additionally, I am a music professional and I expect my Apple laptop to work with widely-accessed audio production hardware.

Very similar sentiments to my own. The reason I think it may be hardware related is that it happens in Windows boot camp also, and does not happen in safe mode, plus that there are users who have working machines either from new or after logic board replacement or machine replacement, although I guess it could be a lower firmware at issue. It also happens straight after a clean install.

Whether hardware or software this does need to be resolved.

I have also used apple products since the mid 90’s and am appalled by the absence of customer care. I was more zen about it until Apple support refused to replace the machine and referred me to terms and conditions I accepted when I first used the machine and claimed I had accepted it “as is”... frankly that’s terrible customer care having spent this much to be rendered with a device that is unusable for any meaningful task.

Pleased to hear that 10.15.6 is fixing the problem for some. Unfortunately it has not fixed my issues ("powerplay failed resume" at shutdown or sleep wake, "powerplay failed to initialize" at startup, "userspace watchdog timeout"'s* at random during normal use*).

*I only get the random watchdog timeouts when the computer has successfully managed to boot into normal mode, but it can no longer get past the "powerplay failed to initialize" panic and boot into normal mode.

Enabled power nap again after updating to 10.15.6 last night.

No crashes so far.

Thanks for fixing this in just 8 months and three days.

This post will be here for a long time, and other users may find it by searching, so I feel obligated to post general recommendations that may apply to many users.

I am sorry they do not appear to be useful to your case.

I suggest you use the "Contact Support" link at the top of every forum page.

Thank you very much for the help and you message.

Actually I already disabled all power apps in the system-prefereces and updated to the latest MacOS (clean install)...but unfortunately without any luck. It still does the 100% vent for a second and shuts off to shortly after restart again. Also when not closing the lid but just leaving the MacBookPro for a longer period idle....this was another message I just received:

panic(cpu 12 caller 0xffffff7fa22f7983): GPU Panic: mux-regs 5 3 7f 1f 0 0 severity 3 WS-ready 0 switch-state 0 IG FBs 0 EG FBs 3:0 power-state 0 3D idle HDA idle system-state 2 power-level 15:0 power-retry 0:0 connect-change 0 : PowerPlay Failed Resume.

Backtrace (CPU 12), Frame : Return Address

0xffffffa79071b700 : 0xffffff801e31f5cd 

0xffffffa79071b750 : 0xffffff801e458b05 

0xffffffa79071b790 : 0xffffff801e44a68e 

0xffffffa79071b7e0 : 0xffffff801e2c5a40 

0xffffffa79071b800 : 0xffffff801e31ec97 

0xffffffa79071b900 : 0xffffff801e31f087 

0xffffffa79071b950 : 0xffffff801eac27cc 

0xffffffa79071b9c0 : 0xffffff7fa22f7983 

0xffffffa79071ba20 : 0xffffff7fa267d37b 

0xffffffa79071bca0 : 0xffffff7fa26494d4 

0xffffffa79071bcd0 : 0xffffff7fa267ccf8 

0xffffffa79071bd00 : 0xffffff7fa2664b3f 

0xffffffa79071bd20 : 0xffffff7fa2664a65 

0xffffffa79071bd40 : 0xffffff7fa2664921 

0xffffffa79071bd70 : 0xffffff7fa1f9efaa 

0xffffffa79071be10 : 0xffffff7fa1f9ed08 

0xffffffa79071be40 : 0xffffff7fa1fa5aeb 

0xffffffa79071bee0 : 0xffffff801ea2e60d 

0xffffffa79071bf30 : 0xffffff801ea2cede 

0xffffffa79071bf70 : 0xffffff801ea2c4d6 

0xffffffa79071bfa0 : 0xffffff801e2c513e 

This is super annoying, everyone I know with the 16” model has this issue - and there’s no so much as a beep from Apple about this.

This isn’t a cheap computer from a no-name company - I expected more, not sure why.

Hi everybody

I thought I had resolved the problem but, NO, it still occurs like all other MacBookPro 16 inch users I know. I tried PRAMzapping, SMC resets, uncheck the power settings and even a clean install of Catalina 10.15.5 having reformatted my HD. No results. I think it is a software issue of the new OS. Although some believe it's a hardware issue. If so, it's time that Apple takes responsibility. It's a very expensive machine and if you need it professionally for edits and graphics like I do, it's super annoying that your Mac restarts after sleep or closing the lid and wakes with this vent-coughs as it caught COVID too:-(

I work with Apple for over 25 years now, never had an issue like this before....that's why I still trust them to resolve this. But time is running. HELP APPLE GUYS, DO SOMETHING!

Not sure if you read my posts?

It happens in regular mode immediately after a clean formatted reinstall, without having added anything or done anything other than complete the OS install process. And in that same condition, it does not happen in safe mode.

Would you agree that, having not added anything, rules out the chance of it being due to having added something?

Spoke too soon - still crashes on 10.15.6.

A few seconds after waking up from sleep, this time on HID (human interface device).

The fans turn on for a sec as if the computer is about to take off, and then it boots.