SOLVED (MAYBE) For me, it's not nVidia, it's not WaylandEnable. It may be the "Started bpfilter" message, which I earlier thought was nothing. I don't know beans about this, but I checked, and bpfilter is a recent replacement for iptables in many Linux distros, and it's handled in the linux kernel. Casting about for perhaps an alternate to gnome display manager 3, I found that SLiM had high user ratings, and one of the suggested advantages was it didn't require systemd (the system startup daemon, which historically has had a running conflict with kernel developers, maybe bpfilter.) On the gamble that this bootup hang might be caused by a kernel-systemd conflict, I enabled networking in recovery mode and ran 'apt install slim' to install alternate display manager SLiM. the installation prompted me to choose SLiM or GDM as the default, I chose SLiM, and was able to boot Cosmic finally. If I run into any issues further on, I'll post here.
If you already have an alternate display manager installed, you can switch with "sudo dpkg-reconfigure gdm" and select the alt dm. Anyway, this might be a last, desperate workaround for the "bpfilter hang," if all the other solutions didn't work for you. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1798790 Title: Ubuntu 18.10 login screen never appears when using the Nvidia driver To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1798790/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
