SOLVED: Need help with new media only working on desktop since 10.9.9

[TheDreadPirate]

At the bottom of the docker config page for the jellyfin container there is an option to "Add Path, port, label, variable, or device". Click that, select device, put "/dev/dri/renderD128" in the text box. Save, restart the container.

[ninjapower14]

You need to add a device and pass in /dev/dri/renderD128.

I don't understand why and how but it worked. thanks a lot!