I have a lenovo laptop, Y580, with a 64-bit 12.04 ubuntu installation. I'm trying to access my NVIDIA video card to run some 3D games, but I don't seem to be able to use it. I've downloaded bumblebee, but it doesn't seem to work. Trying to run anything with optirun gives me this error message:
lspci | grep VGA finds both video cards. Additional drivers says that nvidia-common is "activated, but currently not in use."
[ERROR]Cannot access secondary GPU - error: [XORG] (EE) NVIDIA(0): Failed to initialize the NVIDIA GPU at PCI:1:0:0.
I've been googling furiously to find a solution, but they either don't work or are beyond my abilities. I was wondering if someone here could help.