It seems that the Thunderbolt 3 to 2 adapter is not supported: https://bugzilla.kernel.org/show_bug.cgi?id=189731
** Bug watch added: Linux Kernel Bug Tracker #189731 https://bugzilla.kernel.org/show_bug.cgi?id=189731 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1726299 Title: Apple Thunderbolt 2 to FireWire adapter not working To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1726299/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs