FWIW, the C-states workaround from this post works for me and resolves the hot-plugging issue with TB16: https://www.dell.com/community/XPS/XPS-13-9300-and-WD19TB-linux- problem/m-p/7842208/highlight/true#M81522
Currently running BIOS 1.9.1, TBT firmware V65, TB16 firmware 1.0.5 and kernel 5.13.0-1012-oem. I hope this helps pin down the bug or at least becomes useful for others who run into this. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1922336 Title: ACPI errors and USB reset loop when hot-plugging a Titan Ridge laptop into a dock (9500, TB16) To manage notifications about this bug go to: https://bugs.launchpad.net/dell-sputnik/+bug/1922336/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
