Transcoding - Nvidia Decode works, Encoding dies

[rufinus]

Server Version#: 1.40.1.8227
Player Version#:
Nvidia Driver Version#: 550.54.14
CUDA Version#: 12.4

Proxmox Server with an P400 passthrough to VM. Card and driver are recognized by both the system and plex.

As long as "use hardware-accelerated video ENCoding isnt selected, transcode works, and i see HW enabled DECoding process in nvidia-smi

When i switch hw-encoding on i shortly see the expected two processes in nividia-smi but they are dying (or get killed -9)

Full Log gist:e2f1b869200e0706c06b172acbae476a · GitHub

Any steps to debug this or things to check?

TIA
rufinus

[gpuwhisperer]

Maybe nvidia driver version is too new?

[rufinus]

good idea, but i tried it with 535 too… how far back should i go - what you think?

[gpuwhisperer]

v535 is good stable version. Must be something else…