Moved Plex from Ubuntu to Windows - Hardware Transcoding performance dropped massively

[agsl]

Server Version#: 1.19.4.2935
Player Version#: 4.29.2

I moved from bare metal ubuntu to virtualized Win10 under unRAID, with my GPU passed through. I have a GTX 1660.

Under ubuntu, I had absolutely no issues transcoding a 4k stream down to 1080p. With Windows, however, the same stream buffers and is overall unwatchable. Task manager confirms that Plex’s transcoder is using the GPU for decode.

Any advice? I’m on the latest drivers.

Edit: I just checked GPU usage - a 4k transcode uses only 15% GPU, while a 1080p transcode uses 30-40%

Edit 2: Plex Media Server.log (7.7 MB)

Edit 3: lmao I put it in a 1x pcie slot problem solved

[ChuckPa]

@agsl

to virtualized Win10 under unRAID, with my GPU

1. Virtualized
2. Win10

That’s what you get for taking such a huge (double dip) abstraction.