It was broken because of this package for xorg I installed:
xserver-xorg-core-hwe-18.04
Just remove it even if you have to chroot from a live USB/CD:
sudo apt-get remove xserver-xorg-core-hwe-18.04
ubuntu, linux, mint, login, solutionit, xorg, installed, xserver, hwe, chroot, usb, sudo, apt,