I just now updated my Ubuntu 18.04 to 19.04. After restarting, when I tried to log in, I was sent back to the login page. I've tried almost all the solution that I could find but none of them worked. I tried to login using gnome, gnome classic, ubuntu, Ubuntu on Wayland, gnome on Cory and unity. But I'm able to login only through unity and others all throws me in login loop. Can anybody help me?