See kernel log with the 5.10.0-4008-oem kernel. Didn't work with either USB-C port.
** Attachment added: "kern.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1889342/+attachment/5451633/+files/kern.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1889342 Title: Thunderbolt Dock Loses Monitors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1889342/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs