After the recent security release for Mojave my Mac Mini (2018) crashes when it goes to sleep. Every time I have to restart it and Finder reports that my Mac crashed. I have an eGPU which has been working like a champ to date... but curious if other people are seeing this problem.
Thanks in advance.
Mac mini, macOS 10.14
Sorry, I haven’t read this whole thread, but it seems, these are the issues that are also discussed in this thread:
https://discussions.apple.com/thread/251244094?page=1
I’d like to sum up the results, we had collected so far:
Possible issues:
The Security Update installed a Firmware Update for the T2 chip. This seems the reason, why the actual problems cannot be fixed by a re-installation of macOS: the new T2 firmware (build: 17P4263), located in a protected memory area of the T2 chip itself, will not be replaced with an older version during a fresh macOS installation.
The T2 chip holds the SMC, which is related to sleep and shut down.
The Security Update 2020-002 also installed changes to IOThunderboltFamily and Kernel, which might be the cause for the troubles with eGPU and failing power supply on 1 TB port.
Found solutions so far:
We have send in lots of Kernel Panic Report and bug reports (via Apple Product Feedback).
So far nobody got any response by Apple. We’re actually waiting for a fix with upcoming updates, as this is clearly a software problem.
Expected solution:
Apple must release bug fixed versions of BridgeOS and Safari for High Sierra, Mojave and probably Catalina. (Catalina users encounter some other issues since the SecUpd that need to be addressed).
You might also want to have a look at:
German: https://www.macgadget.de/Forum/T2-BridgeOS-crashes-durch-Security-Update-2020-002
Hope, this might help a bit.
The same here, still crashing on sleep and eGPU eject.
What part did they found defective please? Having the same problem with iMac Pro here.
Looks like I spoke too soon. I just got the crash after about three weeks of putting my mac mini to sleep with no problems.
For me upgrading to Catalina was not solving the issue. Now when booting the display switches off for 2-3 seconds and on back again.
For me it did, not a single crash on sleep.
Thank you for the info, i will try on my system soon...
It has worked for me and also at least two others in other threads have reported that it fixed this issue.
Many thanks again Matti,
It worked!!
However, the Mac Mini still crashes on eGPU eject...
For info 1554.50.3.0.0 (iBridge: 18.16.12561.0.0,0)
Apple T2 Security Chip Firmware Version: 18P2561
I now noticed that in addition to using Safari, syncing Photos.app library to an iPad via iTunes also seems to sometimes trigger those sleep/shutdown-reboot crashes in Mojave.
I now use Chrome instead Safari so I don't get the crashes (unless some other family member has used Safari in their account). But during the last few days I am sure Safari has not been used but I have done some iTunes sync sessions (another saga about Apple's current software quality...). I don't yet know what exact workflow is needed there to trigger the crash.
I have an external disk to test Catalina and with moderate use I don't get the crashes there.
Tried slow mode, I mean safe mode. It took all of 15 seconds after going to sleep, to shut itself off.
2020-04-01 15:11:36.178824-0400 0xc3 Default 0x0 0 0 kernel: (AppleSMC) Previous shutdown cause: 1
2020-04-01 16:30:14.996965-0400 0xc3 Default 0x0 0 0 kernel: (AppleSMC) Previous shutdown cause: 1
2020-04-01 16:36:56.616467-0400 0xc3 Default 0x0 0 0 kernel: (AppleSMC) Previous shutdown cause: 1
2020-04-01 16:55:01.152086-0400 0xc3 Default 0x0 0 0 kernel: (AppleSMC) Previous shutdown cause: -20
It seems that exluding boot from an external on T2 is a new feature (which leaves me scratching my head) but it can easily be allowed by booting in Recovery.
Stupid question maybe, but is there a way for me to boot the Mac Mini from, say, my 2015 Macbook Pro hard drive instead of starting “clean”? The MBP has no problems running an almost identical system with almost the same software. If that works fine on the Mini, I say it's software. If it doesn't, it's hardware. Either way, it saves me from finding an empty disk, reformatting it, installing an OS, etc., ...
No. The install probably included the update but I can reboot later and check.
There are only three possible culprits:
* The monitor
* The keyboard and mouse
* The hardware, in case I'm up **** creek unless Apple chooses to be kind, after I go through an hour or two of phone troubleshooting, and then wait for
At this point, I think I'd just go back to my Mac Pro 5,1 - which I never did sell, though I meant to - and see if there's some hack that lets me run Mojave on an encrypted drive. Not being able to do that is the main reason I “upgraded” to this tiny little computer. Alternatively, if Apple only says “Catalina,” I might have to painfully choose between all my existing software on Windows (I do have Windows versions of Office and Adobe CS) and the Mac. It's an inevitable choice, really, because I have no intention of paying Adobe $20/month and Microsoft $10/month for stuff I already own; but it‘s one I’d rather not make for at least another year.
Hello Hessel89,
oh, that doesn't sound good.
Personally, I don't participate on the Beta programs but I'd like to ask whether this 2020-003 beta again updates the T2 firmware?
(17P4263 was installed with 2020-002).
Does Apple provide any information about the software parts that receive updates with version 2020-003?
(Esp. SMC, IOThunderboltFamily and Kernel).
A forced Catalina Upgrade really would be very unsatisfactory. Also, it seems that not only Apple hardware which contains the T2 Security Chip is affected, but certain MacBooks and iMac models apparently received Boot ROM updates and also ran into problems since then.
It would be a shame if Apple would not fix the problems they introduced for quite a lot of users by one somewhat careless software update.
Thank you very much for the information, let's hope for a rescuing final release.
I don't use any external devices except display and keyboard&month, this issue has a high frequency and has occurred 8 times in the last week.
After reading this whole topic, i just want to say, disable Safari seems could not resolve this issue, because I always use Chrome instead of Safari.
The panic historic on my side,
Timestamp Thread Type Activity PID TTL
2020-05-10 12:43:54.034664+0800 0xb1 Default 0x0 0 0 kernel: (AppleSMC) Previous shutdown cause: 0
2020-05-12 21:38:41.411630+0800 0xb1 Default 0x0 0 0 kernel: (AppleSMC) Previous shutdown cause: -20
2020-05-13 01:21:04.240761+0800 0xb1 Default 0x0 0 0 kernel: (AppleSMC) Previous shutdown cause: -20
2020-05-14 13:42:04.884133+0800 0xb1 Default 0x0 0 0 kernel: (AppleSMC) Previous shutdown cause: -20
2020-05-14 15:21:34.777299+0800 0xb1 Default 0x0 0 0 kernel: (AppleSMC) Previous shutdown cause: 1
2020-05-15 02:59:10.005306+0800 0xb1 Default 0x0 0 0 kernel: (AppleSMC) Previous shutdown cause: -20
2020-05-15 09:57:34.512146+0800 0xb1 Default 0x0 0 0 kernel: (AppleSMC) Previous shutdown cause: 5
2020-05-15 09:59:30.664641+0800 0xb1 Default 0x0 0 0 kernel: (AppleSMC) Previous shutdown cause: 5
2020-05-15 10:32:18.911422+0800 0xb1 Default 0x0 0 0 kernel: (AppleSMC) Previous shutdown cause: -20
2020-05-15 19:58:24.792535+0800 0xb1 Default 0x0 0 0 kernel: (AppleSMC) Previous shutdown cause: -20
2020-05-18 20:27:50.755335+0800 0xb1 Default 0x0 0 0 kernel: (AppleSMC) Previous shutdown cause: -20
2020-05-19 02:18:24.306180+0800 0xb1 Default 0x0 0 0 kernel: (AppleSMC) Previous shutdown cause: -20
2020-05-19 20:25:17.820435+0800 0xb1 Default 0x0 0 0 kernel: (AppleSMC) Previous shutdown cause: 1
2020-05-19 21:42:09.328608+0800 0xb1 Default 0x0 0 0 kernel: (AppleSMC) Previous shutdown cause: 0
The crash report seems like {"caused_by":"bridgeos","macos_version":"Mac OS X 10.14.6 (18G4032)","os_version":"Bridge OS 4.4 (17P4263)","macos_system_state":"sleep","incident_id":"B58B1049-784E-43FB-B290-F64ED4AA8F9F","timestamp":"2020-05-14 18:59:02.00 +0000","bug_type":"210"}
Mac Mini crashing on sleep
