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

Steps to reproduce:

1. Boot (cold or warm, connect to TB3 Dock before or after booting- all variations apply)
2. Put MacBook to sleep (software- Apple logo -> Sleep)
3. Wait 1 minute
4. Disconnect MacBook from dock
5. Wait 5 minutes
6. Connect MacBook to dock, which will wake it from sleep
   1. At this point System Report shows none of the connected Dock (USB and other) devices- for examples see SPUSBDataType and SPAudioDataType datatypes.
7. Wait 1 minute
8. Disconnect MacBook from dock
9. Wait 5 minutes
10. Connect MacBook to dock

Notes:

1. MacBook sometimes crashes after step #8 (last disconnection), sometimes after #10 (last connection), occasionally crashes after 2-3 iterations (i.e. more than one sleep-disconnect-wake cycle).
2. The 5-minute wait phases can typically be shorter.

(split to 2 posts due to the annoying "You’ve exceeded the 5000 character limit for this post" error - even though total's < 3,000 chars)

FIXED by upgrade from Catalina to Big Sur 11.2.1

The issues I had:

1. Intel crash, when plugging in Thunderbolt Apple Display, or when coming out of sleep having had plugged in the Thunderbolt Display whilst sleeping.
2. System not seeing in built hub in Apple Thunderbolt Display, would only work after a Shutdown/Restart

MacBook Pro (13-inch, 2020, Four Thunderbolt 3 ports) 2 GHz Quad-Core Intel Core i5

Apple Thunderbolt Display (TB2)

Apple Thunderbolt 2>3 adaptor

Same here with Dell WD19TB dock on macOS 10.15.7 (19H1217)

I got two monitors:

• A: one from USBC/DisplayPort
• B: one from USB-C==>HDMI.

Problem 1:

When hot plug, only A is recognised. I have to plug out both and replug in B first, wait for it, then plugin A.

Problem 2:

Sometimes, only A monitor is recognised , the rest of ports ( USB hub, ethernet, etc) are missing.

Problem 3:

Frequent crashlog recorded due to unexpected reset message. Usually once a week...

Apple, do something...

So I have an update/confirmation on this issue

I was still within return period for my MacbookPro 13, 2020. So I exchanged it for a MacBook Pro 16" 2020, and paid the difference. Updated new machine to Catalin 10.15.6 Restored from timemachine backup.

Tried it at the office... Behold it works with the CalDigit usb-c dock! Came back home and connected to my CalDigit usb-c dock, and it works too! Only been running for a day, but all the issues with USB & wireless Logitehc Keyboard/Mouse combo connected via Caldigit dock - have disappeared.

This is def an issue with Macbook Pro 13" / Air and MacOsx Catalina 10.15.6 . Not the the hardware issue with docks.

p.s:

I am a bit disappointed, because I wanted to use a smaller laptop with the replacement, but the annoyance of having to reboot my laptop twice a day to have my external devices work with the dock, and then restoring all my applications to working state, is not worth it. The new macbook pro 16 was only $200 more - smaller drive, but everything else is the same or better. Plus I can use 16 cores instead of 8 when compiling.

I have used Big Sur Beta 10 (the one you are using now) for 2 weeks without any problem, right now I am using Big Sur 11.0.1 (released yesterday) without any problem as well.

2 days ago Apple silently released a new version (print screen below) of Catalina 10.15.7: 19H4 vs 19H2 released a month ago, I haven't tried it yet, but this new version of Catalina might solve the issues with the dock and TB3 displays.

Essentially, Big Sur 11.1 fixed the main problem (dead USB or crash on reconnecting external LG Ultrafine 5k) for me, too, and 11.2 has not brought back any problems, either :-)

However my sound output selection/AirPlay menu reveals that apparently disconnecting and re-connecting the LG still produces a "zombie" of the monitor's USB audio, see screenshot.

So while for all practical purposes 11.1 allows me to work normally with my LG and external USB devices connected to it, there still seem to be problems related to TB connected peripherals Apple should fix…

Also experiencing these very issues with my new 2020 MBP 13. I have my work network cable plugged in to a Caldigit TB mini-dock along with 2 hdmi cables - the monitors usually come back fine (sometimes the screens are out of order), but ethernet and the 2 USBs don't work until I restart. Similarly when using 2 HDMI -> TB cables at home, after waking the laptop from sleep one of the screens will sometimes fail to turn on until i unplug and plug in the cable again. Is it possible this issue was introduced in the most recent update, as I don't recall having this problem when I first received and setup the laptop.

Having the same issue with my 2020 Air and an Apple Cinema Thunderbolt Display. None of my ports on the Cinema will be recognized and/or the machine will restart and give me the "Intel CrashLog recorded due to unexpected reset" error message. You would think a brand new machine would work better than this :(

Hello!

I've got the same issue. I'm using and eGPU to recharge the MBP battery and a DELL TB3 to Display Port monitor. When I open de lid, the same error. I'm sending the report to Apple every time.

It's a MBP 2020, 13" i5 10th gen 2.0 GHz.

Exactly the same issue with MB Pro 2020 4TB, Catalina 10.15.6 and the same dock. After SMC reset and safe boot, the issue disappeared for two days, but did now return when attaching the Macbook. Tomorrow there will be 2nd support call, let's see what their solutions will be.

I have the exact same problem, only with a HP G2 Thunderbolt Dockingstation. After waking the MBP from sleep no attached USB device is working, only charging and the monitor is working. Trying to replug the Thunderbolt cable the MacBook crashes with the mentioned intel error. I also can not say if the problem is restricted to 10.15.6 since I only used the MacBook since this version.

Really disappointing from such an expensive machine (also the 2020 4TB standard config). I am still in the return window and now have to decide if I trust apple fixing this or if I would be better of sending the MB back....

So, in the end the support hotline asked me to bring the Macbook to a local service provider, for which I would have to travel to another city, as the local one currently does not accept any personal meetings for service. They still seem to ignore the fact that this is a systematic error, and not just a single hardware failure. Seems Apple does not have a great service management overall.

Hello,

I'm experiencing the very same issue.

New 2020 4-port Macbook Pro 13, having TS3+ at home and at work.

I have experienced multiple resets, tried resetting SMC and it did not help.

It happens more frequently when the lid of macbook is closed.

I shall hope this will be fixed soon.

Also experiencing this with a Kensington SD5550T dock with the same exact problem as reported where I get a crash message: Intel CrashLog recorded due to unexpected reset.

This is crazy! Get this fixed!