title: Ubuntu 14.04 how to install cuda 6.5 without installing nvidia driver
body: <p>I am working on workstation with CPU core I7 4790 and two GPUs GTX 760 4 GB ram/1152 core the system's memory is 16 GB RAM I have Ubuntu 14.04.1 LTS after many tries and reinstalling Ubuntu many times finally i have correctly installed nvidia driver 340.46 using 3 shell commands ppa xorg-edgers</p>
  
  <p>now i want to install Cuda 6.5 toolkit
  but in the manual they say that the cuda toolkit installer will also install nvidia Graphics driver</p>
  
  <p>how to prevent the installer from reinstall the graphics driver how to install cuda 6.5 toolkit without reinstalling my graphics driver because i faced many problems until i installed 340.46 correctly</p>
  
  <p>and after successfully installing cuda toolkit 6.5 how to upgrade my graphics driver without disturbing cuda toolkit and reinstall everything from the beginning</p>