So, I had broken system update, and now in Ubuntu 18.04.1 LTS. At first, I cannot login at all on any login options Ubuntu, Ubuntu in wayland, Unity. Then I don't know but somehow I'm able to login using "Ubuntu in wayland", and start updating using:
dpkg --configure -a apt-get update apt-get dist-upgrade apt-get -f install
Then I'm able to login on wayland. However, every time I'm trying to login using Xorg (the default one), it's always got
Failed to load kernel module error, and then back to login screen.