The system now runs 5.11.0-34-generic which still has the bug. Looking in my /boot the oldest I have is 5.11.0-31-generic which introduced the bug as far as I can tell (thanks apt autoremove). I do however update whenever the thing prompts me to so I would venture a guess that whatever preceded 5.11.0-31 worked.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1942427 Title: [Lenovo Thunderbolt 3 Dock] Upgrade to 5.11.0-31-generic #33 breaks use of external displays with i915 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1942427/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs