Does not load Ubuntu GNOME after login
Testing Ubuntu GNOME for entire disk with lvm and encryption. After reboot, once the passphrase is given, there's a delay of couple of minutes before the login screen shows up. Once the password is given, there's this dark screen with just 'Ubuntu' on it. I let it be for about 25 minutes before I got a login screen again. When I entered the password, it said 'sign in' and not 'unlock' again. After this second signing in, all I can see is the same dark screen. I'm through with an hour after sign in. No sign of Ubuntu GNOME yet. Strangely, the screenshot is completely dark and shows absolutely nothing. All screenshots attached. I'm on VB. I've noticed that keyboard shortcuts like cut and paste on host are not working now either though I'm able to do the same with the mouse.