Unable to login after the Ubuntu 15.10 upgrade, logged out automatically

yesterday I have upgraded my laptop to Ubuntu 15.10 from ubuntu 15.04.

After the upgrade i am unable to login, just its logged out automatically.

I have tried these three desktop all returns same results.

What is not working?
1. Gnome Classic
2. Gnome
3. Ubuntu Desktop

what I have tried?

1. Tried to re-install the ubuntu-deskop and unity
2. Created another user, didn't work
3. Tried to remove Xauthority file

Laptop Model:
1. Lenovo G50-70 / AMD A6 CPU