MBP 13 2020 won't recognize USB devices from CalDigitTS3+ dock after sleeping and connecting to the dock, and after unplugging the dock it crashes

[Jochheim]

Hey guys and girls I made an unexpected finding:
As is said I have the same problem described by Broko Fankone but with a HP G2 Dock. Today I used my MBP 2020 on the dock, then disconnected it for transport and when I went home several hours later, I replugged it - expecting to get the same error as usual (no USB device registered, only Displayport working). And to no surprise no USB was working as usual BUT then I thought I will just leave the MBP as it is and watch what happens. Now I came back to it around 1 h later and TADA: Everything works as intended without shutdown or crash ....

Of course this will not be a good solution to wait several minutes / hours (I did not check in between) but maybe this leads to something? Just wanted to let you know. When I have the time I will try it again and check more frequently (maybe it needed just 5 minutes?).

 

[Jochheim]

Update:
Although everything worked the MBP crashed several minutes after my post and shutdown (even without restarting). I restarted the MBP manually and it was at 100° C and the fans went crazy .... so it seems there is something really, really ****ed up and I have to say that I am not that confident, that apple is able (or willing to) to fix this, especially with all those ARM books coming in - but we will see.

 

[gahabana]

Except it *is* TB3, of course. Yes, I can (A) read product briefs, (B) own one and can easily see what the hardware is.

Well done !!!

 

[robotica]

I wonder if the new update has a fix? https://forums.macrumors.com/thread...l-update-with-virtualization-bug-fix.2249747/

 

[gahabana]

I wonder if the new update has a fix? https://forums.macrumors.com/thread...l-update-with-virtualization-bug-fix.2249747/

hi,
i have updated Macos Catalina to (19G2021) release on MB Pro 2020 13" (4-ports) and there is no improvement.
1. Boot when connected to TB3 Dock
2. Put it to sleep
3. disconnect from the dock
4. wait 2-3 mins
5. connect to the dock
6. no usb devices in system report and thunderbolt device is missing too
7. disconnect from dock and connect again
8. Crashlog sent to apple

 

[robotica]

Thats a shame, I am putting off buying the caldigit until these issues are sorted for good.

 

[Broko Fankone]

Thats a shame, I am putting off buying the caldigit until these issues are sorted for good.

I don't think you will make a bad move even if you get it now. Really, all I do is either shut off the mac, or sleep it and keep the dock plugged in. Of course, the problem is very annoying and shouldn't exist, but it should also get fixed, hopefully. The convenience of the dock is great either way. If it doesn't break it'd be one of the best purchases I've made, but that's a big "IF", of course.

 

[Jochheim]

Maybe I made another discovery .... did you ever try to use another thunderbolt port AFTER you unplugged? I tried that today and it seems to work normally? I will update again if it will crash after some time but maybe you could also try this.

 

[cfm56d7b]

Thats a shame, I am putting off buying the caldigit until these issues are sorted for good.

I am finding myself in the same position. Despite CalDigitTS3+ dock being highly rated, it's not trouble free. I researched every single Thunderbolt dock and none provide trouble free performance.

Plugable will be launching a new Thunderbolt dock in September: TBT3-UDZ Thunderbolt 3 AND USB-C Dual Display Dock With 96W Host Charging. The dock will use Titan Ridge Thunderbolt chipset. CalDigit TS3+ uses Apline Ridge chipset. Hopefully, this dock will be better than others.

 

[gahabana]

Maybe I made another discovery .... did you ever try to use another thunderbolt port AFTER you unplugged? I tried that today and it seems to work normally? I will update again if it will crash after some time but maybe you could also try this.

@Jochheim , yes I've also discovered (i 'think' latest 10.15.6 update to (19G2021) helped) that if i keep swapping LEFT and RIGHT side ports on my MB Pro 13" 2020 with 4 Thunderbolt ports it does not seem to crash and all devices are discovered.
With CalDigit cable is fairly short but i can live with that. Of course, i need to remember every time i come back to my desk to 'recognise' on which side i left the cable and then plug it into another.

Have been running 36 hours with no crashes with about 6 times (sleep, unplug, work, sleep, plug on the other side, wake up, etc) ... not a solution but 'workaround'

 

[gahabana]

@Jochheim , yes I've also discovered (i 'think' latest 10.15.6 update to (19G2021) helped) that if i keep swapping LEFT and RIGHT side ports on my MB Pro 13" 2020 with 4 Thunderbolt ports it does not seem to crash and all devices are discovered.
With CalDigit cable is fairly short but i can live with that. Of course, i need to remember every time i come back to my desk to 'recognise' on which side i left the cable and then plug it into another.

Have been running 36 hours with no crashes with about 6 times (sleep, unplug, work, sleep, plug on the other side, wake up, etc) ... not a solution but 'workaround'

.. Was little premature. Maybe i didn't change to the right side. Net - upon latest 're-connect' to the dock ... no ports visible, tried the other side, no change. put it to sleep again, try to wake it up and it crashed.....

 

[asv56kx3088]

Gotta chime in. I am on a 2020 Air, most of the times the computer won't recognise the USB-C to HDMI connection (the dongle is Apple made), and requires a restart to fix. But a kernal panic dialog was displayed after every restart, and, of course, it says "Intel crashlog recorded due to unexpected reset". Sometimes it doesn't recognise my Samsung T5 external SSD too. After reading the post, I started to believe that there is a firmware bug in the 2020 products that Apple is still unaware of.
Software version: 10.15.6 (19G2021), I have tried reinstalling and starting from scratch already, but the same issue remained. Any advice welcomed.

 

[Jochheim]

.. Was little premature. Maybe i didn't change to the right side. Net - upon latest 're-connect' to the dock ... no ports visible, tried the other side, no change. put it to sleep again, try to wake it up and it crashed.....

Yeah, seems like a "one time only" solution. It worked for me 1 time and if you then disconnect and reconnect again the MBP goes bonkers. I have to say this is the least stable apple product I have ever owned. I can't believe that this is supposed to be a "state of the art" Thunderbolt machine. Now I have a second problem - I have 2 displays connected over the thunderbolt dock and every time the MBP goes bonkers and restarts with the mentioned failure dialog the second display is not recognized no matter what. The MBP also starts with the fans all over the place and with a temperature of 100 °C.

 

[asv56kx3088]

I have found a possible workaround, but it sadly involves logging out and logging back in.
When the mac refuses to recognise your accessories, simply log out of the computer, then type in the password as normal and press enter. Plug in your devices while it is loading the desktop, and pray to god that it will work fine. it should work as intended.
I will continually test this method and provide updates if I find more information. Feel free to test this on your own!

 

[Jochheim]

@asv56kx3088
Thanks for the input, I will try that. Do you replug the whole thunderbolt docking station when "relogging in" or just the USB peripherals into the docking station? Because otherwise (in my case) the MBP will crash and goes nuts (maybe it was your point, that exactly this will not happen with your method - will try).

 

[asv56kx3088]

@asv56kx3088
Thanks for the input, I will try that. Do you replug the whole thunderbolt docking station when "relogging in" or just the USB peripherals into the docking station? Because otherwise (in my case) the MBP will crash and goes nuts (maybe it was your point, that exactly this will not happen with your method - will try).

I replug the docking station (the USB C plug that connects to the MacBook), but this method was only tested on the 2020 Air instead of the Pro, so YMMV.

 

[Broko Fankone]

Keep in mind it takes a certain amount of sleeping before the issue gets triggered. It could be more than a few hours and sometimes you might think you've solved the issue but in reality it never happened.

It is unclear at what stage of sleeping it occurs and if it's consistent or random in its timing.

 

[carestudio]

Not sure if this would help. Open the computer's lid and wake up comptuer before you dock or un-dock. 10.15.5 was working perfectly, now, Apple got more tasks to work on for 10.15.7 if there is one

 

[utensil]

Same exact problem here with 10.15.6 2020 mba with Apple Thunderbolt Display (same with Apple Cinema Display) and CalDigit TS3+. Happens for me regardless of duration - even if unplugged and replugged immediately, and even without sleeping.

 

[zutzutter]

Same exact problem here with 10.15.6 2020 mba with Apple Thunderbolt Display (same with Apple Cinema Display) and CalDigit TS3+. Happens for me regardless of duration - even if unplugged and replugged immediately, and even without sleeping.

I have the exact same problem, running on a 10.15.6 2020MBP using the CalDigit USB-C Pro Dock (running via TB3). The MBP keeps crashing in clamshell / stand by every 5-6 stand by 'cycles' and crashes when unplugging and replugging the dock (like once every 10 times).

The unplugging /replugging also crashes the MBP without clamshell mode (so regular 'open' laptop, attached the MBP PSU and the CalDigit USB-C Pro dock + one screen, unplug-replug -> crash).

My problem now is that my MBP / Console doesn't generate any crash reports anymore (I have this issue since the latest Supplemental Update), so I can't validate the crashes anymore. The latest crashlog I have is:

panic(cpu 10 caller 0xffffff8013127998): "kfree: size 13907096280052039680 > kalloc_largest_allocated 16318464"@/AppleInternal/BuildRoot/Library/Caches/com.apple.xbs/Sources/xnu/xnu-6153.141.1/osfmk/kern/kalloc.c:868

I've found nothing so far that works. Tried a different dock, same problem. I'm calling Apple to get my MBP (which is now 5 days old) for a new one, see if that works. I've also noticed that I need to re-enter my keychain password every time my MBP crashes (for instance in Safari when 'auto completing' login information). Maybe that can be of insight to anyone?

Anyone have any idea how to get my Crash Logs back? That would surely help locating the problem.

Note: I've also reset SMC, PRAM / NVRAM and did a full reinstall of MacOS, no luck yet. The problem exists even in Safe Mode. It's not: the TB3 Cable, the Dock, the monitors, the TB3 ports, the PSU. So the problem is either the MBP or MacOS it seems. I've also tinkered with all the sleep settings (power nap, no stand by, etc), it doesn't do jack.

Note2: Can anyone with the standby crashes try the following: Open your MBP, attach the MBP PSU, attach a Dock with one or two screens (it seems that adding two screens makes the crashes more frequent, I feel), and keep detaching and attaching the Dock. I feel like the issue is with the 'initialisation' of the Dock (which causes the crashes in both the detaching / attaching routine as in the sleep routine).

 

[drxcm]

dp

 

[drxcm]

I don't have a Caldigit dock, but am experiencing the same issue.

I'm using MBP 13" 2020 i5, LG Ultrafine 4k (new) and Logitech Unifying receiver plugged into the LG USB-C dock for mouse and keyb.

If I connect to the LG with my MPB the display wakes up fine, but the Logitech Receiver needs a restart to pickup keyb and mouse.

Was working perfectly on 10.15.5

Posted here too

10.15.6 USB issues - won't connect without restart

Hi, installed this update which was meant to fix USB issues. My setup 13" i5 2020 MBP, LG ultrafine 4K display. Logitech unifying device plugged into LG's USB-C port on the back. I used to just plug the LG into the MBP, and it would charge and recognise my Keyb and mouse via the unifying...

forums.macrumors.com

 

[Jochheim]

@drxcm
Yeah, seems to be the same problem as the LG Ultrafine also uses Thunderbolt 3 and not USB-C. As this problem is really frustrating, most if the time I am not using my Thunderbolt Dock but my USB-C Monitor with USB devices (also Logitech unifying receiver) - this works without issues. I have not tested yet the method provided by asv56kx3088 - so maybe worth a try (will do when I have time).

 

[macccintosh]

I'd like to add that I'm having the same issue with a CalDigit TS3 Plus Thunderbolt dock and a 2020 MacBook Pro 13" running 10.15.6. If the dock is not connected for a while and then I connect it to any of the Thunderbolt ports, my USB devices are not recognized. Checking System Information confirms that the MacBook is not recognizing any devices on the Thunderbolt ports.

If I try to restart, the machine crashes. Once it has restarted, the USB devices work fine and will continue to work until I unplug the MacBook from the dock for a while and then try to reconnect it later.

I'm fairly sure it's macOS that is the problem here as my Lenovo laptop running Linux works more consistently and reliably than my MacBook with the same setup.

I was expecting better from Apple to say the least. I guess we just have to hope this is addressed in a future release of macOS.

 

[Broko Fankone]

Feel free to tweet at @Applesupport on Twitter. They do not respond to me anymore since the last USB issue, maybe they will take other users into consideration.