[UbuntuGnome] partiel upgrade update manager

Hello community,

Yesterday i upgrade 16.04 to 16.10, and do partiel upgrade after with console ; and after reboot with update manager...

Now when i put my computer on, i arrived on another session directly on Vboxuser session !

i can't login my admin session !

i try ctrl + alt + f1,2,3,4,5,6 it's the same thing too many code ligne, impossible to read it's too speed !

How find my user session ?

Thanks for regards,