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

Same here. What's weird is Big Sur had seemingly solved it with my dock. But for the last few days, I've been working elsewhere and hooking two monitors directly up to usbc/tb3 without a dock and I've been getting resets every few hours after it goes to sleep.

I'm leaving it unplugged from the Apple power supply for now to see if that precludes it from happening.

I am in support of a coordinated response. My computer crashed again today losing valuable data for the second time now (I lost data for the second time… This happens all the time and I have to restart multiple times a day to get through workflow). I am done being patient and supplying crash logs. I need a solution. I need a new laptop.

I spoke with another senior advisor two days ago. Nice guy, but he gave me the party line ("discussion boards only mention the negative stuff," "everybody's computer is configured differently," etc. etc.) and suggested once again I upgrade to Big Sur, even though I'd already cited plenty of posts here suggesting that wasn't a fix for this bug, at least not for everybody. He said he would go back to the engineers and respond to me soon. I told him if the only reply was "upgrade to Big Sur" I wanted a refund. He said that would be almost impossible as my machine is 8 months old. The thing is, I don't want a new laptop, I just want the one I spent a fortune on in good faith to work as it's supposed to. Again, I think if a number of us are willing to make the same demand—fix this bug or refund me—it will have an effect. Happy to discuss strategies for doing this in a respectful and productive way.

Very similar to my experiences with my TB Docks at work and home. Constant battle wondering which device or component (sound, display, charging, ethernet) is not going to work. Reboot after reboot... ridiculous. It was better on Big Sur beta (the last one) and I'm on Big Sur (official) now and it is slightly better, but still super inconsistent and wonky.

Im having the same exact issue. Only happened to my 2020 MB Air AFTER I updated to Big Sur. Seems wildly unfair that we purchase these 1,000.00 machines but get no support from Apple when they make mistakes. I happens to me multiple time as day, almost every time my computer goes inactive for more than 5 min. I have deleted every third party app and also booted in safe mode, ran all the utilities, cleaned everything and still nothing.

Just for completeness and anyone searching for this problem, I'm having the same issue with the slightly older SD5000T dock (Firmware Version: 20.1). I've noticed that after reconnecting, the USB audio device that's built into this dock has disappeared, though everything else still seems to work.

I have reset both SMC and NVRAM, and it even happens on a clean install of 10.15.7.

macOS 10.15.7 (19H15), MacBook Pro (13-inch, 2020, Four Thunderbolt 3 ports)

Hi all, I wanted to share another data point after upgrading to Big Sur 11.0.1. Once I upgraded my MacBook Pro (13-inch, 2020, Four Thunderbolt 3 ports) to Big Sur 11.0.1, the wake-from-sleep kernel panic issue and USB device disconnect issues have disappeared with my Plugable Thunderbolt docks. I did get a few kernel panics stating "Sleep transition timed out after 180 seconds while calling power state change callbacks. Suspected bundle: com.apple.iokit.IOGraphicsFamily”, which I believe may have to do with the “Power Nap” setting.  Once I disabled “Power Nap” these kernel panics seem to have stopped.

Also, as a side note, my entire Mac's performance is WAY better with Big Sur than it was under Catalina. I noticed a major performance and responsiveness improvement immediately after upgrading to Big Sur. Also, all of my applications seem to work just fine under Big Sur.

Just wanted to share another data point...

I installed 11.1 today and will report back if I notice any changes on my M1 MBP.

I also spoke with a senior advisor today that I was still having issues (although the behavior is different) with TB and devices not being recognized. He sent it to engineers and I am supposed to speak with him again later this week. If anything interesting comes up I will post here.

I just started having this issue with my early/mid 2020 MBA on Catalina 10.15.7 connected to a Dell monitor. I suspect it's triggered by the monitor going to sleep because my MBA is set to never sleep. Also, the MBA just shuts down instead of restarts. Each morning for a few days now, I come into my home office and the MBA is off. I'm installing a security and safari update now. If that doesn't fix it, I'll have to set the monitor to never sleep I guess.

Yes, the issues does not happen with my MBP 2017 but it occurs with MBP2020. Hopefully Apple can resolve this soon!

Just updated to Big Sur beta 7 and the same problem still happens.

It isn't worse so far, but the exact same issue from Catalina happens: it reboots after unplugging the dock.

I guess they "had to" say something instead taking the blame. It's obviously nonsense.

It doesn’t seem to fix anything, still had a kernel panic when unplugging my dock.

Confirmed running on 10.15.7 still seeing identical crash behaviour. We need a fix from Apple soon!

Same issue. This is quite incredible!!!!