If the external HDMI is plugged in at power-on, a login window will show up on the HDMI, and then I can choose gnome or gnome classic for the session, log in, then right-click on the desktop, set the displays to mirror, and get to the main panels or activities menu.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1882442 Title: Upgrade from 18.04 to 20.04 deactivates internal monitor in display manager To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1882442/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs