Originally Posted by bdmw1
>>> Xlib: extension "NV-GLX" missing on display ":1008.0".
>>> after vdp_device_create,vdp_st=1
>>> Segmentation fault (core dumped)
Is NX a replacement X server? VDPAU relies on the X server using the NVIDIA driver, which certainly isn't the case for a vncserver X server. It sounds like NX would be in the same boat, but I haven't looked into it at all.
Running N real X servers definitely isn't an option with a single GPU. For one, only 1 X server is active (on the current VT) at a time. Even if this weren't the case, VDPAU currently only supports decoding a single stream at a time.
I'm not sure if using multiple NVIDIA GPUs in the server system, and running multiple X servers, will work either; I think they're still bound by the same VT limitation (since VTs are global in Linux, not per X server).
So in short, I'm not sure what to tell you. Sorry!