Solved in this way:
1) boot with old kernel (3.13.0-44) 2) login without gui (ctrl-alt-f1) 3) login with root (if enabled) 3) stopping lightdm (service lightdm stop) 4) a little cleaning (apt-get clean && apt-get autoclean && apt-get autoremove) 5) update source and fix (apt-get update && apt-get install -f) 6) install nvidia (apt-get install --reinstall nvidia-331-updates-uvm) 7) upgrade (apt-get upgrade) 8) reboot (shutdown -r now) 9) boot with new kernel (3.13.0-45) 10) :-)
Solved in this way:
1) boot with old kernel (3.13.0-44) 331-updates- uvm)
2) login without gui (ctrl-alt-f1)
3) login with root (if enabled)
3) stopping lightdm (service lightdm stop)
4) a little cleaning (apt-get clean && apt-get autoclean && apt-get autoremove)
5) update source and fix (apt-get update && apt-get install -f)
6) install nvidia (apt-get install --reinstall nvidia-
7) upgrade (apt-get upgrade)
8) reboot (shutdown -r now)
9) boot with new kernel (3.13.0-45)
10) :-)