Dell 5530 fw1.8.1 w/TB16 fw 1.0.2. Tested on 5.0.9-200.fc29.x86_64.

Can confirm that my WAR still works. If I reboot Win10 prior to booting
Linux, it is stable. Even if I undock and dock it through the day.

If I reboot Linux twice, it fails after minutes, definitely within
15min. Haven't tested yet on Ubuntu 19.04 with 5.0.9-050009-generic
mainline (PPA) yet, but I expect it will be the same.

Things were pretty stable on 1.0.0 fw and kernels upto 4.18.18.

Is it a xhci_hcd return code that is not handled properly from Dell TB16
(and some other thunderbolt) docks?

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https://bugs.launchpad.net/bugs/1766076

Title:
  USB over thunderbolt turns off every once in a while

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