What I currently do, is to detach the USB cable from the dock, connect the thunderbolt cable to the computer, wait for everything to settle (either by looking at the dmesg log or just waiting for the dock audio device to be registered - which shows on the OSD), then connecting the USB cable. See attached dmesg log of this process.
All of my devices are on the cable connected to the back of the dock - anything else listed in the log before timestamp 342 is internal to the dock (i.e. the built-in hub, audio device and NIC). ** Attachment added: "lp1766076-tb-reconnect-without-usb-chain.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1856161/+attachment/5314557/+files/lp1766076-tb-reconnect-without-usb-chain.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