I haven't found a straightforward way of preventing a process X from running on GPU. In my case, I want to exclude compiz window manager and some other processes from running on my nVidia GPU.
There are, indeed, application profiles (in nVidia X server settings), but using that, one can just fine tune some OpenGL settings, not completely exclude the process from running on GPU.
Is there a way of achieving this? Is Bumblebee the (only) solution?
Thanks!