I am on Ubuntu 14.04 LTS.
As I understand to use Cuda with GPGPU like Tesla I need another graphic card as well since Tesla K20c has no display port. If not for it I could not use a monitor and I cannot see anything.
However Cuda 7.0 require driver version 346 or more, when I install Cuda 7.0 it broke my GeForce 8800 GT I am using for monitor connection since it seemed to support only 340 which is for Cuda 6.5 (not an option for me, I need cuDNN v3 support) and cause the login loop problem.
I don’t plan to use the GeForce 8800 for Cuda computation. Can I install the driver for only Tesla but use the old one for display GPU?