Started seeing something similar on Precision 5520 with TB16 dock after a recent kernel update. The original 4.18 worked fine, but 4.18.0-16 and 4.18.0-17 are definitely affected, possibly some earlier ones too.
After a while, e.g. 2 hours of work, connecting a new device to the dock causes the xhci_hcd module to go belly up and one of the following happens: 1. USB devices connected to the dock stop working, but daisy-chained DP monitors still work. Reconnecting the dock causes display drivers to die without recovering and requires a hard reset; although this second part is probably a new i915/nvidia issue and a regression to LP#1752165. 2. The system completely freezes and requires a hard reset. I haven't had the chance to play around with this yet, if anyone has any ideas on what to try to reproduce this and what logs to capture I'll find some time. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1766076 Title: USB over thunderbolt turns off every once in a while To manage notifications about this bug go to: https://bugs.launchpad.net/dell-sputnik/+bug/1766076/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
