What will Plex use for Hardware Transcodeing when both Intel Quick Sync and Nvidia hardware are present on Ubuntu 20.04 LTS

Plex Media Server
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PlexMediaServer install: PlexMediaServer-1.25.6.5577-c8bd13540 - Installation starting.
PlexMediaServer install: 
PlexMediaServer install: Now installing based on:
PlexMediaServer install:   Installation Type:   Update
PlexMediaServer install:   Process Control:     systemd
PlexMediaServer install:   Plex User:           plex
PlexMediaServer install:   Plex Group:          plex
PlexMediaServer install:   Video Group:         render
PlexMediaServer install:   Metadata Dir:        /var/lib/plexmediaserver/Library/Application Support
PlexMediaServer install:   Temp Directory:      /dev/shm  (set in Preferences.xml)
PlexMediaServer install:   Lang Encoding:       en_US.UTF-8
PlexMediaServer install:   Intel i915 Hardware: Found
PlexMediaServer install:   Nvidia GPU card:     Found
PlexMediaServer install:  
PlexMediaServer install:   OpenCL:              Installed
PlexMediaServer install:   Beignet:             Installed
PlexMediaServer install:  
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Server Version#: 1.25.6.5577-c8bd13540
Player Version#:

I can see during transcodes it is using HW, but I am not sure which. Installed on a box with an i7-8700 CPU and a GTX 1070. Which logs can I check to see which way it is transcoding?

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Plex Media Server.log search for TPU: hardware transcoding:

Alternatively you can use the browser app and go to settings > console and filter for the above.

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TPU: hardware transcoding: using hardware decode accelerator vaapi

QSV it is… I figured because there is usually a spike in CPU when transcoding, and NVIDIA-SMI shows nothing.

Thank you!

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If you have all the nvidia drivers loaded you can point Plex to it via this setting, add

HardwareDevicePath="/dev/dri/renderD129"

to the end of your Preferences.xml to get Plex to use the second gpu.

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Added that into Preferences.xml and restarted plex and now getting

[Transcode] TPU: hardware transcoding: final decoder: nvdec, final encoder: nvenc

THANK YOU. I really wasn’t expecting to get this sorted out this morning. I appreciate your help!

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