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

good news re CalDigit sending through supporting data. Hopefully that gets them moving a bit. In the meantime, anyone who can access the Feedback Assistant should log the issue through there with a link to this thread.

Another sequence that has been working for me (disclaimer: only tried it twice so not exactly proven!) is to open the lid first, let it wake up, switch off wifi (for me one of the issues has been ethernet not recognising), then after a few seconds plug in the dock cable. Ethernet has been working in these cases (usually doesn't until I reboot), the only issue being my monitors come back out of order - but i wonder whether that is another bug related to monitors of the same type

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!

I have been having this exact issue. I own both the CalDigit TS3 plus as well as the Anker PowerExpand Elite. I have had this exact issue on BOTH docks. Most recently, upon returning to the CalDigit TS3 from the Anker dock, I have been having "USB Devices Disabled" despite the single cord coming from my MBP to the dock.

I have talked to a support technician a few times. I had even asked if this had been happening to others. I just want to do my schoolwork, lol. I cannot continue to have these problems. I am not made of money to just buy other docks.

Same issue here. Same crash message: Intel CrashLog recorded due to unexpected reset

Latest 13inch MacBook Pro (13inch 2020, 4 TB ports)

CalDigit

But I did not have any issues with crashes before updating to 10.15.6. Now, already several times when unplugging the Mac from the dock. Really annoying.

according to Apple here is the list of things 10.15.7 fixes:

Resolves an issue where macOS would not automatically connect to Wi-Fi networks
Fixes an issue that could prevent files syncing through iCloud Drive
Addresses a graphic issue that may occur on iMac (Retina 5K, 27-inch, 2020) with Radeon Pro 5700 XT

OBVIOUSLY Apple has done NOTHNIG after 2+ months of problems reported that no Thunderbolt Dock (excep USB-C only docks) nor some Thunderbolt Monitors work with 2020 Macbook's with 10.15.6 or later without crashing -

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.

I have the same problem; Thunderbolt display camera and USB ports fail randomly when MBP2020 plugged in (Catalina 10.15.6).

Same issue with MBP2015 and Mojave. Spent hours online with Apple support and the best they came up with was "maybe there's a problem with your cable".

Maybe we should direct them to this forum... They should be well aware that we have been trying multiple ways to resolve it and it does not work. I changed my logic board and it did not work too... It's really an internal issue that Apple needs to acknowledge and help us resolve.

Just to give an update - possibly a positive one!

This morning I unplugged from my CalDigit TS3+ dock and then slept the machine.

Drove to office, used a bit on lap, then plugged in to my identical dock in the office.

Whereas previously this has caused a crash, it's carried on running, and the dock is shown in the Caldigit docking utility.

Have they sneakily fixed it? I've done this many times before and got the Intel crash every time.

Running macOS Catalina 10.15.7.

I was hopeful! Howver...

I got home and plugged in my dock - external monitors worked fine but dock could not be seen by CalDigit docking station software. So I unplugged again and boom - got the Intel crash.

Very disapointed that it's still not fixed!

Maybe we could all report this thread to theregister.co.uk or another tech news outlet, who will approach Apple for comment!

I'm really worried that this is Intel related and super hard to diagnose, and since it's happening with the last generation of Intel MacBooks, and there's rumors they're releasing Apple Silicon ones later this year, that they just deprioritized fixing this.

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.

Wow! Twice a day? I only reboot once a day as try to keep my laptop "awake" for the day. But yes, apple really need to do something about this. This is not very helpful for all of us, especially during this period when we are highly dependent on our laptop for work.