The error you posted got me thinking and I did a reinstall of libnma0 and gir1.2-nm-1.0 and now the problem went away. Somehow, something on these got foobared. I never had any networkmanager issues though.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1910559 Title: GDM3: Black screen with blinking cursor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1910559/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs