I have a very annoying issue. For the last 10 hours or so, I have been trying to install CUDA 7.0 on the most recent version of Ubuntu 14.04. My computer is a laptop with a Geforce 980M and Intel integrated graphics (forget the version). I did a fresh installation of Ubuntu, installed CUDA in accordance with the instructions on the website, and blacklisted the Nouveau drivers just to be safe
options nouveau modeset=0
However, when I try to boot, it hangs at the splash screen. The only solution to this is to boot into the previous kernel (which loads properly, although without CUDA), then reboot into the current kernel(which will then load properly).
I got it working once by accident, then tried to install pycuda and broke it.
I desperately need help. I have tried modifying all sorts of files, and nothing seems to work, unless by work one means "prevents the splash screen from showing up at all."