usb1 and usb2 is root hub of "00:0d.0 USB controller [0c03]: Intel Corporation Ice Lake Thunderbolt 3 USB Controller [8086:8a13] (rev 03) (prog-if 30 [XHCI])".
** Changed in: linux (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1878602 Title: When TBT dock is plugged into ICL TBT xHCI, port without device is in CAS state, causes many warm reset fail To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1878602/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs