(In reply to comment #63)
> Please try
> http://cgit.freedesktop.org/~deathsimple/linux/log/?h=drm-next-3.16.
> 
> This branch might fix the remaining frame drop problems.

Hi Christian,

I see multiple commits, are you specifically referring to the page flip
commits?  Problems with the vblank handling could explain skipped frames in
XBMC as this indicates the render thread is late as explained by Rainer.

I will see if I can create a patch for OpenElec to pull in all the changes made
to drm/radeon and test it