Re: vdpau fails - 180.37 - MPlayer SVN-r28942-4.3.3
There are a lot of "XID" messages in your syslog. These are the GPU indicating it had a problem interpreting commands sent to it. Some of these appear to be caused by the X server and some by VDPAU. I think the most likely cause is that your graphics card isn't seated correctly in its slot, or perhaps some system-level issue causing data to be corrupted as its transferred to the GPU. Can you try reseating the card, updating the BIOS. Is your system correctly cooled? If anything is overclocked, please revert that and retry.
Hope this helps...