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ckyte

macrumors newbie
Jun 19, 2020
1
0
I'm having the same issues with my new MacBook Pro (16")... I'm getting kernel panics pretty much every day several times a day as my computer goes to sleep. I have 2 4k external monitors connected via a caldigit hub to DisplayPort. Anyone found any fixes?
I am also using a Caldigit dock, reached out to them and they replaced the dock thinking it might be faulty but sadly no resolve. Did you get your issues worked out by change?
 

tommiy

macrumors 6502
Dec 11, 2015
412
127
I was going to offer a suggestion. Some where on either here or the apple communities there is a message about the kernel panics being caused by Apples thunderbolt kernel extensions. These are not loaded in safe mode so generally you will run fine in safe mode. The suggestion was to remove these at boot time but everything else still worked there after. I'm not sure that i can find it again however and I have not tried it....but if your brave. List of apple kernel extensions not loaded in safe mode you can find here.
 

weaztek

macrumors 6502
Original poster
Aug 28, 2009
435
260
Madison
Update from the OP: I am now running Catalina going on a week now without a crash. I was sending crash reports to Apple whenever I got them. I'm not sure if an update fixed the bug or what. I did delete a few old kexts that were not needed but I think my Mini was stable before I did that.
 

matram

macrumors 6502a
Sep 18, 2011
781
416
Sweden
I am also using a Caldigit dock, reached out to them and they replaced the dock thinking it might be faulty but sadly no resolve. Did you get your issues worked out by change?

I can confirm that I have the same problem with mynCaldigit TS3+ both on my 2016 15” and the 16”. I have stopped using the TS3. Quite disappointed that this is still an issue.
 

jdw13

macrumors regular
Oct 2, 2015
156
38
Boston, Maine, Chile
Exact same problem here. Apple Care told me to reboot into Safe Mode, then reboot again into normal mode because "Safe Mode fixes things." I asked if there was a log to see if anything was fixed, he said no. I don't have much confidence that rebooting twice did anything other than fulfill the support checklist. His next step is to reinstall Catalina.

Anyway, I just unticked every single setting in the power control panel and we'll see if that fixes things. I have external drives, including Time Machine. I bet it was trying to run TM while sleeping.

I was not expecting this to do anything but it worked for me. I had recently updated to Catalina 10.15.7 on a MacBook Pro (Retina, 13-inch, Mid 2014). Not only had I recently updated OS, but updated all the apps including Xcode and had swapped out an external USB disk, one of two on USB bridge, because it was showing SMART errors indicating near end-of-life. So there were at least a handful of possible culprits, including DriveDX to be able to read SMART on external USB drives, and booting in safe mode seem a very long shot.

I booted in safe mode (restart with shift key) and used the laptop for several hours that way with no disk issues.
After booting in normal mode I expected to have to tediously try to find why the crash "Panic_IOUSBMassStorageInterfaceNub..." but I have been running a couple of days now with our issue.

Booting in safe mode and running that way a few hours seems to have fixed this issue for me....

(I spent the day in safe mode just be able to exclude the new disk itself.)
 
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