The Ubuntu 18.04 LTS installation (with 4.15.0-24-generic x86_64) in our living room fails to boot to the login screen. Some other Ubuntu installations in our flat are still working alright (they should be on the same patch level). I used the borked one this morning and it was working okay. Afaik no updates or anything. Normal shutdown around lunch. When I tried to boot it again a couple hours later, it keeps hanging.
After power up, it first hangs a while on the screen with the logo and the dots (no dots move, only the first one is ever shown). After about half a minute or so, it drops to the boot messsages; here is what's shown last:
[ OK ] Started GNOME Display Manager.erver.tcher Service......tem changes.pp link was shut down....
After that, nothing.
I can Ctrl+Alt+F2 to a tty login. I can then log in, ping Google, use
apt, etc. I updated everything and rebooted, but it didn't change anything. Reinstalled gdm3 and GNOME, still nothing.