After the upgrade from Ubuntu 18.04 to 18.04.1, when booting instead of going from grub menu to the purple login page, it goes directly to tty1.

The current kernel is 4.15.0-33 and I've already tried to boot with every kernel version from 33 to 29.

Also the systemctl status gdm3 command gives the active status.

Output of dmesg --level=err,warn :

Output of lspci -knn | feel -i VGA -A3 :