After recovering from the warning failed to connect to lvmetad error I released when I tried to login to the first account I ever created was not logging in I typed in the right password it says the password was right then give me a wallpaper and logout automatically and bring me back to the password box.
Here is a couple of things you can do :
.Xauthority and try to login
sudo rm .Xauthority
If that fails delete
sudo rm .ICEauthority
if that fails press Ctrl + Alt + F12 then press Alt + F2 login and then run this command:
The last solution would be to purge the video drivers.
Let me know if any of these work.