Bug#767367: [Pkg-opencl-devel] Bug#767367: nvidia-opencl-icd dependencies

[Rebecca N. Palmer]

> nouveau is not blacklisted ... the kernel module would probably get loaded by a cuda application
#580894 (the original reason for the blacklist) has conflicting reports 
of what would happen next: some report nvidia.ko gets control (=blank 
screen if the graphics side isn't installed), some that nouveau.ko does. 
  It also may have changed since, and isn't testable in a chroot.

> It must be possible to have *all* installed at the same time and to switch between them without package removal (since only one can be active at a time).
I agree that that's the ideal solution in the long term but too much of 
a change for jessie.