Plex dont use hw encoder

Boecki_83 · November 25, 2019, 12:43pm

Hi,

my Plex server dont use hardware encoding.
My settings looks ok.

Here my server specs:

Intel(R) Xeon(R) CPU E3-1275 v6
Ubuntu 18.04 bionic
64 GB Ram

Nov 25, 2019 13:36:36.276 [0x7f5c8e7fc700] ERROR - [FFMPEG] - Cannot load libcuda.so.1
Nov 25, 2019 13:36:36.276 [0x7f5c8e7fc700] ERROR - [FFMPEG] - Could not dynamically load CUDA
Nov 25, 2019 13:36:36.276 [0x7f5c8e7fc700] DEBUG - Codecs: hardware transcoding: opening hw device failed - probably not supported by this system, error: Unknown error occurred
Nov 25, 2019 13:36:36.277 [0x7f5c8e7fc700] DEBUG - Codecs: testing h264 (decoder) with hwdevice vaapi
Nov 25, 2019 13:36:36.277 [0x7f5c8e7fc700] DEBUG - Codecs: hardware transcoding: testing API vaapi
Nov 25, 2019 13:36:36.277 [0x7f5c8e7fc700] DEBUG - Codecs: hardware transcoding: opening hw device failed - probably not supported by this system, error: Generic error in an external library
Nov 25, 2019 13:36:36.277 [0x7f5c8e7fc700] DEBUG - Codecs: testing h264 (decoder) with hwdevice nvdec
Nov 25, 2019 13:36:36.278 [0x7f5c8e7fc700] DEBUG - Codecs: hardware transcoding: testing API nvdec

Any ideas ?

ChuckPa · November 25, 2019, 5:48pm

See if /dev/dri shows you any files. If so, please list them
It looks like it expects nVidia as well. Do you have a nVidia card installed (with its drivers) ?
Which groups does user plex belong to ( /etc/group )

Boecki_83 · November 25, 2019, 6:23pm

/dev/dri doesnt exist. Looks like a kernel modul is missing but which
Theres no Nvidia Card inside.
video:x:44:plex
plex:x:115:
render:x:119:plex

Morphy · November 25, 2019, 6:27pm

Just a wild guess, but if you run via Hetzner , you can follow this guide .

github.com

desimaniac/docs/blob/master/enable_igpu_on_hetzner.md

# How to enable iGPU on Hetzner - For Hardware Accelerated Transcoding in Plex/Emby


Note: This was tested on Hetzner's EX41-SSD Server, running Intel Core i7-7700 CPU on Ubuntu Server 16.04, but should work on other Hetzner servers with supported Intel CPUs (see [this](https://support.plex.tv/hc/en-us/articles/115002178853-Using-Hardware-Accelerated-Streaming) and [this](https://en.wikipedia.org/wiki/Intel_Quick_Sync_Video)).

_Note: If you have a Coffee Lake or newer CPU (e.g. the Intel Core i7-8700 in EX61-NVME), you will need to either 1) update to Ubuntu Server 18.04, or 2) update the kernel on 16.04 (see [this](https://github.com/pimlie/ubuntu-mainline-kernel.sh)), to have /dev/dri show up._

## When iGPU isnt loaded...

`/dev/dri` path will be missing...

```
$ ls -la /dev/dri
ls: cannot access '/dev/dri': No such file or directory
```

`vainfo` will show this:

```
$ vainfo

This file has been truncated. show original

Boecki_83 · November 25, 2019, 6:47pm

Thanks alot Morphy, didnt realize that Hetzner blacklisted i915
Working like a charm !

system · February 23, 2020, 6:47pm

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Plex dont use hw encoder

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