I just upgraded to Ubuntu 12.10, and my desktop is pretty sluggish (not surprising since it's using the "Gallium 0.4 llvmpipe"), which I was expecting, at least to a certain degree. I'm running a laptop with NVIDIA's Optimus system, and I've got Bumblebee installed and working just fine. Is there any way to force ubuntu to use bumblebee to run compiz at boot? I'd like to get my nice (smooth) desktop effects back again. If there's not, is there something else I can try?