For NVIDIA cards, use VDPAU. Most media players (if not all) have auto-detection implemented and otherwise the settings can usually be changed to force VDPAU. The message " Trying to open /usr/lib/x86_64-linux-gnu/dri/nvidia_drv_video.so" is harmless (and part of the probing). There is nothing to fix.
For NVIDIA cards, use VDPAU. Most media players (if not all) have auto-detection implemented and otherwise the settings can usually be changed to force VDPAU. The message " Trying to open /usr/lib/ x86_64- linux-gnu/ dri/nvidia_ drv_video. so" is harmless (and part of the probing). There is nothing to fix.