I should add that on 5.12 there is no USB reset loop observed in my original post; USB devices attached to the dock just don't work at all when re-plugging in the dock, even sporadically. After re-plugging in the dock, the built-in laptop keyboard works, but calling anything that relies on sudo/root, even just "sudo dmesg" or "reboot" hangs indefinitely. The terminal keeps blinking, so it's not a complete hard freeze. Removing the dock again does not make it recover. Hard-reset is the only thing that is left at that point to get the system operational again.
-- 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
