I'm not having any success in finding the answer to this question. I want to install the Linux 64bit drivers for my Ubuntu install (v 15.04). I've read the installation notes file and understand everything except the xorg.conf file piece. What I'm not finding in my searches is whether this is necessary with Ubuntu running X and there not being an xorg.conf any longer. Do I need to do this step, and, if so, can someone point me to a generic xorg.conf file?