That means Wayland is disabled by your hardware.
Thanks, I did read on Didier Rocks that Wayland is disabled and falls
back by default when proprietary Nvidia drivers are used.
– user299070 yesterday
I am not a huge fan of the Linux Nvidia drivers*, but once in a while I try them to check the performance of the machine. More often than not, I end up in a console and no X/Wayland.
I have seen some Ubuntu users reinstalling their machine after this f* up, so here's how to fix it (I always forget the initramfs step and end up wasting a lot of time):
$ sudo apt-get remove --purge nvidia-*
$ sudo mv /etc/X11/xorg.conf /etc/X11/xorg.conf_pre-nvidia
$ sudo update-initramfs -u