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.
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.