Update: after upgrading to 21.10 (Linux 5.13.0-21-generic #21-Ubuntu SMP Tue Oct 19 08:59:28 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux) the problem persists with a twist:
The settings applet now sees all monitors, but trying to configure a setup with all three is not really feasible since selecting a setup leads to both external monitors going blank and the primary screen dimming, with no visible dialog for confirming that the new configuration is to be applied permanently (possibly displayed on one of the two blanked-out monitors). I hope this bug will be addressed shortly. -- 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 [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
