Nouveau - Nov 2012 - GEFORCE GT 520M with nouveau doesn't works

on my samsung rv520
video board=nvidia GEFORCE GT 520M
nouveau doesn't works, at boot grub is ok, but at login the screen is 
unreadble, a mess of colors and a 2cmm green square tha follw the mouse 
movement,
I pressed esk key as suggested here:
https://forums.opensuse.org/english/get-technical-help-here/hardware/480853-geforce-gt-520m-nouveau-only-640x480-resolution-2.html
but it doesnt works
so I'm following the hint to ask you :-)
I can access only in recovery mode, or, now, with nvidia driver, do you 
think there is any chance to use nouveau on this video board??

thnx, ciao :-), pier