unprivileged LXC - PLEX - Unable to start transcoder

crosseel

New Member
Jun 1, 2025
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Guys,

I recently moved my Plex server to proxmox in an unprivileged container install through community VE-Helper script.
All works fine except when Plex needs to transcode a movie then I get an error.

"Conversion failed. The transcoder failed to start up"​

I googled and learned it could be related to the temporary transcode folder.
When I look in the setting of the Plex GUI the path to this folder under Transcode is empty..
I checked under the transcode settings and I can select my GPU for HW transcoding..
Could this be the issue here? Anybody who had this issue like me?

Edit: Found that Plex has a location in var/lib/plexmediaserver/Library/'Application Support'/'Plex Media Server'/Cache/Transcode/Sessions for the transcoding. Checked and the rights are drwxr-xr-x 2 plex plex 4096 Jun 24 22:42
 
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