Created attachment 106246 [details] [review]
Temporary patch for 9400M GT acceleration

Could you please test this patch along with Ilia's one? It should fix
acceleration on the 9400M GT, allowing you to boot without nouveau.noaccel=1
and to launch X.

I'll need to refine the patch a bit as it introduces some errors on the 9600M.
Another patch may be mandatory to get both cards to get along: for now, the
laptop seems to be hitting an infinite loop when launching X with both cards
enabled.