Comment 2 for bug 1916467

A series of thunderbolt / usb4 patches were sent (https://<email address hidden>/#r) and they are going to be in 5.12 (https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git/commit/?h=usb-next&id=0a25669ba8a276f34dfa41f0eeae96ee9ecb2a17)

A test kernel (https://people.canonical.com/~alexhung/LP1916467/) was built based on oem-5.10 with the followings in current mainline kernel.

4d395c5e74398f664405819330e5a298da37f655
3da88be249973f7b74e7b24ed559e6abc2fc5af4
3cd542e6e6afb6fa6c34d4094d498f42e22110f5
5ca67688256a0aeede5cba288eaef4d8e4a9e622
719e1f561afbe020ed175825a9bd25ed62ed1697
5a6a2c0f0f43676df27632d657a3f18b151a7ef8
c6da62a219d028de10f2e22e93a34c7ee2b88d03

Alternatively, it may also worthwhile to test latest mainline if the above does not work.