So it seems to be the vboxvideo driver that was added to 4.13, if I blacklist that the gdm login screen appears. So a temporary workaround is to add a file named /etc/modprobe.d/vbox.conf with the contents 'blacklist vboxvideo'.
So it seems to be the vboxvideo driver that was added to 4.13, if I blacklist that the gdm login screen appears. So a temporary workaround is to add a file named /etc/modprobe. d/vbox. conf with the contents 'blacklist vboxvideo'.