SOLVED: ffmpeg crash on hevc 10 bit

[KingPin]

just for copmpleteness sake :

Trying display: drm
libva info: VA-API version 1.21.0
libva info: Trying to open /usr/lib/jellyfin-ffmpeg/lib/dri/nvidia_drv_video.so
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/nvidia_drv_video.so
libva info: Trying to open /usr/lib/dri/nvidia_drv_video.so
libva info: Trying to open /usr/local/lib/dri/nvidia_drv_video.so
libva info: va_openDriver() returns -1
vaInitialize failed with error code -1 (unknown libva error),exit

# ll /dev/dri
total 0
drwxr-xr-x  3 root root        100 Jul  1 20:00 ./
drwxr-xr-x 19 root root      4360 Jul  1 20:00 ../
drwxr-xr-x  2 root root        80 Jul  1 20:00 by-path/
crw-rw----  1 root video  226,  0 Jul  1 20:00 card0
crw-rw----  1 root render 226, 128 Jul  1 20:00 renderD128