Created attachment 110350 [details] [review]
[Patch] Fix acceleration on 9400M v4

This should be the final verson of this patch, thanks to answers given by the
Nvidia guys.

Please check that you can use the NVAC with acceleration. If you want to start
X or power off the NV96 (if you have one), you will either need to deactivate
acceleration for it (noaccel=0000:02:00.0) or use the trick describe by l3iggs
**before** loading Nouveau.