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Ubuntu - GPU - VA-API - Override the driver for VA-API

The driver for VA-API can be overridden by using the LIBVA_DRIVER_NAME environment variable.

AMD:
- For AMDGPU driver use radeonsi.
Intel graphics:
- For libva-intel-driver use i965.
- For intel-media-driver use iHD.
NVIDIA:
- For Nouveau use nouveau.
- For NVIDIA VDPAU use vdpau.
- For NVIDIA NVDEC use nvidia.

Example

unset LIBVA_DRIVER_NAME
export LIBVA_DRIVER_NAME=radeonsi