[noggin]

Here it is : http://paste.ubuntu.com/8131313/

I think I see my problem. I hadn't upgraded i965-va-driver. I've just done an apt-get install and both new VAAPI modes are now working properly. Motion Compensated sitting at around 25% on both cores of the 2955U with a 25Mbs 1080/50i H264 file. Looks good and lower CPU than YADIF 2x in software?

After this I have : http://paste.ubuntu.com/8131344/

So I obviously hadn't upgraded my i965-va-driver. My mistake. Thanks for the handholding.

I now get this with vainfo http://paste.ubuntu.com/8131352/ The <unknown profile> is new though?