Originally Posted by r0mik
vdp_device_create_x11 returns an error VDP_STATUS_NO_IMPLEMENTATION (No backend implementation could be loaded).
Running an GF8400M-GS.
This error covers a number of fatal initialization problems, such as not finding the driver library, not finding valid hardware, or an unsupported configuration, etc..
Do OpenGL applications run correctly for you?
Given your HW configuration, I'd guess the most likely issue is that you're running Xinerama?