Re: VDPAU testing tool
Do you see the issue in MPlayer or just XBMC? MPlayer is probably the lightest weight VDPAU app out there, so I'd be surprised if there were issues. XBMC uses OpenGL for rendering, so does require extra work from the GPU. So, there could well be differences between the two applications. Do you have desktop compositing enabled? Turning that off would help. Finally, your GPU is one of the lower-end FERMI cards. It's plausible that a higher end earlier generation card might work better for you. It'd be interesting to know.