Note that interestingly, the newly installed VM screen did start working after an unknown amount of time. I have reboot since and it still isn't working after some minutes. I had disabled screen locking and screen blanking when it last worked, which might be relevant as those wore the operating conditions of the previous VM.
** Attachment added: "A /var/log/syslog fragment." https://bugs.launchpad.net/ubuntu/+bug/2058785/+attachment/5758485/+files/gnome-shell.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2058785 Title: Blank screen after login on 2nd reboot after install or upgrade. 24.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/2058785/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs