[gven]

After a lot of testing by reinstalling some packages, trying libva git, reinstalling xbmc again and again to the latests revisions... I'm still getting the same thing as here. Is there something wrong in my setup or is xbmc's vaapi support broken ?

Also, now I'm getting many segfaults since the revision where the skin changed to an horizontal bar... I think it's related to mysql's support for the video database (I tried with a new system user and had no problem until I put the mysql videodatabase configuration). I'll start a thread for that specific problem.

I did get XBMC 11 compile from latest yesterday to work well with VAAPI, so VAAPI support is NOT broken. I do have the same problems with segfaults as in your second paragraphs but that is independent of using VAAPI for playback.

Your symptoms are exactly what happens with XBMC 10.1 for me but XBMC 11 works fine for VAAPI. So not sure where the problem is.

A couple of things to try.

First disable VAAPI in the xbmc settings and make sure XBMC is able to play the video properly in your 11 build. If not, it may indicate some other problems.

Next turn the VAAPI settings on and quit. Move vainfo to a temporary directory so XBMC cannot find it (I think XBMC uses this to check for VAAPI availability, at least XBMC 10 did, not sure of 11) and see if XBMC is able to play the video but without VAAPI.

If XBMC passes the above two tests, then it should have eliminated any problem with XBMC and point to problems with your driver stack.

What does your vainfo output say?