Since I started getting the bug 1766076 xhci failure, this problem has become more acute as the automatic workaround described in 1766076 no longer works - when resetting the xhci bus, the bus fails to be set up properly due to this issue and I'm left with a non-functioning system.
See attached log for when trying to reset the xhci bus while all devices are connected to the dock. Currently my recovery procedure is either: - reset the bus again (manually) and pray for it to work (it does every 5-6 times) - or manually disconnect the USB chain (I've moved it to the front port so its more accessible); reset the bus; wait for everything to settle; count to 5; reconnect the USB chain. The counting part is important as if I attach the chain too early after the last xhci message in dmesg, it fails to setup with the same error as if it was connected during the reset. ** Attachment added: "reset-xhci-failure.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1856161/+attachment/5316520/+files/reset-xhci-failure.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1856161 Title: Thunderbolt dock fails to connect USB devices To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1856161/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
