Did a fresh 13.04 install "Additional drivers" doesnt show anything at all. Was working fine on Ubuntu 12.04.
I have 2 nvidia cards installed 680GTX and 460GTX both detected on lspci, currently my system looks like its running on the Nouveau driver (Gallium 0.4 on NVE4)
01:00.0 VGA compatible controller: NVIDIA Corporation GK104 [GeForce GTX 680] (rev a1)
02:00.0 VGA compatible controller: NVIDIA Corporation GF104 [GeForce GTX 460] (rev a1)
Any ideas on how to fix it?