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

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.

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 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.

Same problem here with

• MBP 13 2020
• Elgato dock 3
• Samsung 4K 28" screen

When disconnecting from the dock the Mac will crash and upon restart show the "Intel CrashLog recorded due to unexpected reset" error.

I hope this gets fixed quickly, it is becoming very annoying on a daily basis when I go from my office to any meeting or back home.

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.

After a massive headache and many hours with support, Apple eventually agreed to refund the money for the incompatible dock (CalDigit TS3+ in my case). Too bad they won't also take back the laptop -- my 2015 air was far more stable/reliable (and didn't require carrying around a full bag of adapters). This is likely to be my last Apple product.

Very similar issue here. All USB devices plugged into my CalDigit TS3 Plus aren't recognized until restarting. Luckily, I don't see the crashes when unplugging/replugging the dock, but doing so doesn't resolve the issue.

MBP 13 2020

i5 10th-gen

macOS 10.15.6

I've had a case open with Apple with three weeks. My tech tried to blame my docking station until I was able to prove it happened without it. Best of luck. I hope your tech is more helpful than mine has been.

I am glad I am not the only one. I have the same issue with a OWC Thunderbolt 3 Dock (https://www.owcdigital.com/products/thunderbolt-3-dock-14-port) on my new MBP 13 2020 going to my Dell 4k display. I am very unhappy with apple about this as it seems they need to resolve this. I am very tired of seeing: Intel CrashLog recorded due to unexpected reset

I created a ticket. They want me to reproduce the problem in safe mode. I will do that shortly.

As with others, the conversation always assumes it's the dock that's the problem despite my sharing this thread. I don't understand how dock manufacturers are in touch with Apple engineers but this isn't documented anywhere.

One thing I'm concerned about is that we're all finding workarounds such as less undocking and more reboots before a crash occurs. The problem with not letting the machine crash is that Apple will see less crash error reports and potentially be less inclined to investigate, especially if they use AI/algorithms looking for problems and errors etc.

I had the crash again earlier, but MacOs didn't allow me to send the error report at all. I'm hoping that was a one-off!

It would be great if that got them to take this issue seriously but I'm not going to get my hopes up. It seems like quite a few of us in this thread have spent a ton of time providing apple with logs and reproduction steps yet they still appear to be pretty clueless as to what the problem is. From this thread at least I know I'm not the only one who after multiple weeks of waiting for a response from my support advisor I'm told "your system is fine it's probably the dock." At least I have another Mac that works fine with thunderbolt devices so they escalated the issue once again, who knows how long it'll take to hear back this time. I've also been told they have no other reports of this issue.

I've also filed really detailed feedback in Feedback Assistant that is just sitting in the open state. When 10.15.7 was released I made sure to update the feedback that this is still a problem. So far I have yet to hear any updates.

Hahaha! Maybe we should. But to be frank, it does not seem like the number of individuals affected by this is significant enough to address this issues. We need more who are encountering this issue to voice out.

That did cross my mind, however IIRC this only appeared after a certain OS minor version (so it's software related). I haven't owned the new MBP then, but maybe someone here can confirm that it only started after one of the more recent updates.