Kubernetes Setup with nvidia gpu | ErsatzTV | Page 1

digital mesa Mar 25, 2026, 7:41 PM

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Hi all,
I was wondering if anyone has been able to deploy ersatztv using kubernetes and using an nvidia gpu. I think transcoding is working correctly but when it comes to tone mapping for hdr content everything keeps going to cpu. Pretty sure I had this working correctly on the same machine previously using Ubuntu server and Linux install option. Now running same machine as a node in my homelab k8s cluster using talos Linux.

silver osprey Mar 25, 2026, 10:27 PM

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I think HDR with Nvidia requires vulkan

zenith geyser Mar 25, 2026, 11:08 PM

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I can use HDR features in k8s on Jellyfin but with ETV I know it's different

soft loomBOT Mar 31, 2026, 12:42 AM

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@digital mesa
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digital mesa Mar 31, 2026, 12:43 AM

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silver osprey I think HDR with Nvidia requires vulkan

yup youre right. went back to using ubuntu server and the linux install isntructions and it worked witout issue

digital mesa Mar 31, 2026, 2:04 AM

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I'm quite out of my depth here but running it in standalone docker seems to have the same issue. anything I can do get this working?

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Native Linux install:

Pipeline: TonemapCudaFilter + libplacebo + vulkan=vk@nv + hwaccel vulkan + EncoderH264Nvenc
Fully on the GPU, no CPU involvement

Docker:

Pipeline: CudaSoftwareFallbackUploadFilter + ScaleCudaFilter + TonemapFilter + EncoderH264Nvenc
CUDA handles decode/encode on GPU but tonemapping falls back to CPU, causing high CPU utilization

silver osprey Mar 31, 2026, 2:42 AM

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ah right, it's coming back to me now. when i added vulkan tonemapping for nvidia, i couldn't figure out how to get it to work inside of docker, so it's explicitly disabled there https://github.com/ErsatzTV/ErsatzTV/blob/0d301df5e8512fdfccf3a611188d27ab1690ee31/docker/Dockerfile#L66

#Kubernetes Setup with nvidia gpu