Testing 10.9.0

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If you don't plan to use iGPU, then don't pass its corresponding renderD128 to docker.
In addition, according to the libdrm code, 129->128 mapping is strongly not recommended, please do 129->129. The cardX is not required.

host:
/dev/dri/renderD128 # iGPU
/dev/dri/renderD129 # dGPU
/dev/dri/card0
/dev/dri/card1

docker:
/dev/dri/renderD129 # dGPU
/dev/dri/card1 # optional, not required

BTW the QSV on Linux is based on VA-API.

Thanks for the info! And yeah, I only pass one device at a time. The situation I described is with only passing my dGPU. I'm aware Linux QSV is Intel's implementation of VA-API. I figured my trying to be smart with 129->128 was probably a pitfall, which is why I changed it. No need to complicate things like that.