how to install NVIDIA GeForce GT 520M driver on ubuntu 13.10? i want this graphic driver for steam's games
in short, first install bumblebee:
sudo apt-get install bumblebee bumblebee-nvidia
then you can run steam with your nvidia graphics:
this process will allow you to utilize Optimus (that's whats bumblebee is for) and then you can manually run applications with your nvidia card using the optirun command.