Finally I have got my Ubuntu GNOME working with my input devices but I always have problems with my graphics drivers. I have no idea how I should install them, I know that I must not download drivers online from the vendors but to instead use a repository. But I am not sure of what one to use and whether I should use the software and drivers section to install the proprietary option.
So should I use a ppa or the settings page? What ppa should I use? And what driver version should I use for a 770?
I don't recall having to install drivers for my GTX 770 on 15.04 via terminal; I am sure it was either auto-detected and the nvidia binary driver installed or I just had to select it in the GUI instead of the open source nouveau driver after installation. Mine is currently set with the 346 driver which is/was the most recent in the ubuntu repository.
the nvidia 346 driver is working fine for my GTX 770, the newer drivers are probably focused more on the GTX 9xx cards and possibly some newer games. The same machine also has a Sabayon install which has a newer nvidia driver and kernel - there is little performance difference on bench-marking tools like Unigine Valley.