I recently set up Frigate NVR at home, and wanted to integrate it into my existing ecosystems. I wanted to offload transcodes and detection to my GPU, use my existing Authentik setup for authentication, and integrate it with my Home Assistant setup. All while running within Docker containers, running inside LXC on my Proxmox server. This is how I configured everything.
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It’s been a few years since I made my post about getting Plex GPU transcoding to work in Docker inside an LXC container running on Proxmox. It’s gotten quite a few updates over the years based on feedbacks and own observations, which fixes different problems and optimized several aspects.
I recently upgraded my Proxmox-host, and also wanted to update my NVIDIA-drivers. After the upgrade everything seemed to be fine, but Plex transcoding would not work. All my usual previous fixes did not solve the problem. I decided to “start from scratch”, and see if I could a) get it to work, b) simplify the setup, and c) improve where possible.
14 CommentsI recently had to get GPU transcoding in Plex to work. The setup involved running Plex inside a Docker container, inside of an LXC container, running on top of Proxmox. I found some general guidelines online, but none that covered all aspects (especially dual layer of containerization/virtualization). I ran into a few challenges to get this working properly, so I’ll attempt to give a complete guide here.
Edit (2025-04-20): I’ve since created a new version of this guide (v2). I recommend that you use the new version. I will not be able to validate any aspects of the old guide, as I’m using the new setup. Also, this version (v1) will probably not get much updates due to this.
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