MBP 13 2020 won't recognize USB devices from TB dock after sleeping and connecting to the dock. After unplugging the dock MBP crashes and does SMC reset

Hmmm, thank you for trying and for your feedback. I used it a couple of days ago to file the bug and it worked fine for me. I not part of any beta programs either, but have a (free of charge) developer login. Either way, if people put a short description into the crash report which you are being asked to send that the issue is related to TB3 docks reproducibly crashing with 10.15.6 with a link to this thread, that should also help.

This is also happening to me with a 2020 MacBook Air on Catalina 10.15.6 with a CalDigit TS3 thunderbolt dock OR with plugging a Apple thunderbolt display (or cinema display) in directly.

It sounds nearly exactly the same as the original poster and many of the responses.

Incredibly frustrating -- sorry I ever upgraded to a new Mac.

It is not happening only with Macos Catalina but with Beta 4 of BigSur beta. Feedback assistant could be used for submitting bug. I have tried that ... Don't have time to install Beta 5 which was issued this week but reading at list of changes i see no mention of USB/TB3 and assume this very same bug is still well and alive in Beta 5 of BigSur.

Same issue both with and without dock on LG ultrafine display w and w/o VAVA usb c hub on another port in the laptop. Computer does a full hard reset when unplugging. Tried all resets, same issue continues to happen.

I had powernap disabled on battery the whole time, so that alone can not be the decisive factor. I now tried disabling it on AC as well, seems to reduce the frequency of the issue. Otho, I now did an updato to Big Sur Beta 5, and even with powernap enabled, I am unable to reproduce the error.

Did someone else upgrade to Beta 5?

In the end I really have to say it is a shame Apple ignores bugs for months, but is able to remove Apps from the Appstore in hours if they don't contribute to the enormous wealth this company already has. Definitely the first and last product from Apple for me.

Same problem: MBA 2020 does not recognize the - tailor made for Mac ecosystem... - LG Ultrafine 4k 23' display connected over thunderbolt 3 and crashes after unplugging of the same (on a daily basis). The problem appears since updating to 10.15.6 (bought at the end of March with what I think was 10.15.3 preinstalled) and after a "longer" time of running without shut down.

I really wonder how Apple can ignore such an annoying (the workflow disrupting) bug, when one would assume that their software and hardware engineers would work with their own distributed and promoted hardware on a daily basis?!

copied from console:

{"caused_by":"macos","macos_version":"Mac OS X 10.15.6 (19G2021)","os_version":"Bridge OS 4.6 (17P6610)","macos_system_state":"running","incident_id":"CADA0967-22CB-449C-B1B5-57A542D4D209","timestamp":"2020-08-23 16:19:36.00 +0000","bug_type":"210"}

{

"build" : "Bridge OS 4.6 (17P6610)",

"product" : "iBridge2,15",

"kernel" : "Darwin Kernel Version 19.6.0: Thu Jun 18 20:30:46 PDT 2020; root:xnu-6153.145.1~1\/RELEASE_ARM64_T8010",

"incident" : "CADA0967-22CB-449C-B1B5-57A542D4D209",

"crashReporterKey" : "c0dec0dec0dec0dec0dec0dec0dec0dec0de0001",

"date" : "2020-08-23 16:19:36.28 +0000",

"panicString" : "panic(cpu 0 caller 0xfffffff01750d4fc): x86 CPU CATERR detected\nDebugger message: panic\nMemory

I tried giving feedback using the assistant in Big Sur, but it seems as usual with Apple, Feedback is a one way street...

Did someone have more luck using their "Support"? I tried disabling Powernap but the crash still happened, so this does no seem to fix it.

Also experiencing this issue. 2020 MacBook Pro 13" (10th-gen i5), CalDigit TS3+ dock, LG 27UK850 4K 27" monitor plugged into the dock via HDMI to USB-C. When I plug in the TB3 cable, I'll sometimes get a display on the external monitor, but USB keyboard doesn't work, then I get the kernel panic screen and it reboots.

This only appears to affect my 2020 MBP; I have a 2018 15" MacBook Pro i7 for work that functions perfectly with my dock/monitor setup. Can plug and unplug the TB3 cable all day with no issues on this computer. Just having issues with the new 2020 model.

I'm running macOS Catalina 10.15.6 on both machines.

Device: MBP 13" 2020 10th gen i5

OS: Catalina 10.15.6

Peripherals: Apple Thunderbolt Display + Apple brand USB-C adapter

I've had what I think is a similar issue: when I unplug my MacBook Pro (2020) from an Apple Thunderbolt Display (using only Apple brand cords and adapters), the computer crashes and tells me an Intel CrashLog was reported. I bought the Pro after having the same problems with a 2020 MacBook Air, but it seems to be a problem across the lineup.

I'm running into this issue as well.

I've been working with a senior advisor for two weeks now trying to diagnose the issue with my 13" 2020 Macbook. I use a Henge Dock/Brydge docking station. Apple tried to tell me there was no issue with my machine and it must be the docking station. I reached out to the Byrdge and I was in the process of mailing back my dock so they could take a look at it.

Over this past weekend, I plugged my Apple Thunderbolt displays directly into my computer and ran into the same issue three more times, so it's not the docking station. I also lose the ability to use my USB keyboard when I plug into my dock after it's been asleep over night. It's most definitely an issue with the Macbook/software.

One solution that has kinda worked for me is that if I leave my computer connected to the monitor and just unplug my power supply, I can usually come back the next morning and not have an issue.

I purchased my Macbook on June 12 of this year, and have had the issue since I got it.

So we know that a restart solves the USB issue. Is there not a way to stop then restart the USB or Thunderbird services without a restart through like the command line or something?

I don't mind working around this until it is solved but I can't be restarting my computer every time it comes back from sleep.

I have spent a bit of time trying to track down the service required but no luck yet, would be interested to hear if someone figures it out.

Wondering if anyone who has submitted this through the Feedback Assistant has had any kind of response or notification of receipt? At risk of sounding like a fanboy, i'm loving the new work laptop after years of issues with my previous Dell - but if this issue doesn't get resolved soon I might have to go on the hunt again.

eddispgeddi: I doubt there is any service responsible for this. This goes down to kernel drivers, so if something may be possible it may be replacing appropriate kexts (kernel extensions) with older ones - but even that may not work of course as older kexts may not be directly compatible (depends whether kernel has changed between last minor versions).

Also Apple is known for not responding to issues ever. So yeah, welcome to Apple world I guess.

I have a somewhat similar issue with my dock + the update from CalDigit support

TLDR: First update from CalDigit, then I will describe by problem for posterity in case other people have similar issues:

Our team has been in communications with Apple regarding this issue. We’ve seen user’s experience USB’s getting disabled and restarts on the 2020 MBP with our docks and other brands. We have also been able to replicate the restarts and have reported our findings to the Apple team

[...]

Apple is aware of this problem and this should be resolved in a later addition to the operating system.

Hopefully we will see a solution in the near future.

-----------------------------

My actual problem:

I have 2 identical setups at home & at work, 2x Acer 2K monitors + Caldigit USB-C dock + Logitech wireless mouse + keyboard combo + ethernet cable + several USB-A peripherals via USB Hub ( phone charger, watch charger, thumb drives) .

Every time I move my laptop ( which is daily) from work to home, or from home to work, and re-connect it to CalDigit Dock (either at home or at work), my external  mouse & keyboard are unresponsive (monitors connected via DPs and other USB devices seem to work fine). They only way I can get them to work again, is to reboot macbook. 

This is a brand new MacBook 2020 13 inches. Before that I had a MacBook 15 from 2015, that died in a battery explosion :( That was the best laptop ever.

Also have this issue with MBP2020 13 i7 with CalDigit TS3 Plus.

If you're running the CalDigit Docking Station Utility, you can see the dock.

But on unplug and replug, although my external monitors work, peripherals plugged into the dock e.g. webcam are not visible to the Mac.

Then eventually you get a crash - "Intel CrashLog recorded due to unexpected reset".

MacOS is version 10.15.6, Caldigit software/firmware all latest.

Very frustrating as my old Mac would sleep/run/sleep/run for months. But every time I disconnect the dock I know I'm going to get a crash.

By the looks of the comments here it's not limited to CalDigit kit - seems to be OS/firmware related on the MBP.