# "Conversion failed" on multiple clients

**URL:** <https://forums.plex.tv/t/conversion-failed-on-multiple-clients/838060>\
**Category:** Plex Media Server\
**Tags:** server-linux, playback\
**Created:** [April 16, 2023, 3:11am UTC](https://forums.plex.tv/t/conversion-failed-on-multiple-clients/838060 "2023-04-16T03:11:52Z")\
**Posts on this page:** 1\
**Showing post:** 2

<div class="post-metadata">

**Author:** ![ChuckPa](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/chuckpa/32/79710_2.png) [@ChuckPa](https://forums.plex.tv/u/ChuckPa)\
**Post date:** [April 16, 2023, 4:34am UTC](https://forums.plex.tv/t/conversion-failed-on-multiple-clients/838060/2 "2023-04-16T04:34:54Z")

</div>

1. Your user-supplied certificate needs updating

```auto
Apr 15, 2023 22:56:17.964 [0x7f4a53d7da90] DEBUG - FeatureManager: Using cached data for features list
Apr 15, 2023 22:56:18.154 [0x7f4a53d7da90] ERROR - [CERT] PKCS12_parse failed: error:0308010C:digital envelope routines::unsupported
Apr 15, 2023 22:56:18.154 [0x7f4a53d7da90] ERROR - [CERT] Found a certificate, but couldn't install it.
Apr 15, 2023 22:56:18.154 [0x7f4a53d7da90] DEBUG - MyPlex: mapping state set to 'Unknown'.
Apr 15, 2023 22:56:18.155 [0x7f4a53d7da90] DEBUG - Relay: read 35 cached entries from hosts file
Apr 15, 2023 22:56:18.156 [0x7f4a53d7da90] DEBUG - [CERT] CERT: Forcing refresh.
Apr 15, 2023 22:56:18.159 [0x7f4a53d7da90] ERROR - [CERT] PKCS12_parse failed: error:0308010C:digital envelope routines::unsupported
Apr 15, 2023 22:56:18.159 [0x7f4a53d7da90] DEBUG - [CERT] CERT: Unable to parse existing certificate, fetching a new one.

```

> [@Linux Tips](https://forums.plex.tv/t/linux-tips/276247/25):
>
> OpenSSL v3.0.0 and PMS. For those using their own domains and certificates with PMS , PMS 1.32.0.6865 and above updates OpenSSL from v1.1.1 to v3.0.0 . (changed the numbering scheme in the process) The consequence of this is OpenSSL v3 removed several “less secure” encryption methods. The impact on you, if you’re using an older distributions where openssl v3 is not the default, if not already doing so, you will need pay special attention to how your certificates are generated As example,…

1. I see where you’re directing to /dev/dri/renderD129.

```auto
Apr 15, 2023 22:57:04.135 [0x7f4a4a117b38] DEBUG - [Req#383/Transcode] TPU: hardware transcoding: final decoder: , final encoder: vaapi
Apr 15, 2023 22:57:04.135 [0x7f4a4a117b38] DEBUG - [Req#383/Transcode/JobRunner] Job running: FFMPEG_EXTERNAL_LIBS='/var/lib/plexmediaserver/Library/Application\ Support/Plex\ Media\ Server/Codecs/e51a01b-4528-linux-x86_64/' X_PLEX_TOKEN=xxxxxxxxxxxxxxxxxxxx46ce-ae97-538446215785 "/usr/lib/plexmediaserver/Plex Transcoder" -codec:0 h264 -codec:1 ac3 -analyzeduration 20000000 -probesize 20000000 -i "/home/nicholush/Videos/TV/Parks and Recreation/Season 1/Parks and Recreation - S01E01 - Make My Pit a Park WEBDL-1080p.mkv" -filter_complex "[0:0]scale=w=1920:h=1080:force_divisible_by=4[0];[0]format=pix_fmts=nv12[1];[1]hwupload[2]" -map "[2]" -codec:0 h264_vaapi -b:0 20000k -r:0 23.975999999999999 -force_key_frames:0 "expr:gte(t,n_forced*1)" -filter_complex "[0:1] aresample=async=1:ochl='stereo':rematrix_maxval=0.000000dB:osr=48000[3]" -map "[3]" -metadata:s:1 language=eng -codec:1 aac -b:1 256k -f dash -seg_duration 1 -dash_segment_type mp4 -init_seg_name 'init-stream$RepresentationID$.m4s' -media_seg_name 'chunk-stream$RepresentationID$-$Number%05d$.m4s' -window_size 5 -delete_removed false -skip_to_segment 1 -time_delta 0.0625 -manifest_name "http://127.0.0.1:32400/video/:/transcode/session/pptm6wy0hcc53yeeox6loc12/72ba05a8-6082-4c7f-874d-1bd14d0272fc/manifest?X-Plex-Http-Pipeline=infinite" -avoid_negative_ts disabled -map_metadata -1 -map_chapters -1 dash -start_at_zero -copyts -vsync cfr -init_hw_device vaapi=vaapi:/dev/dri/renderD129 -filter_hw_device vaapi -y -nostats -loglevel quiet -loglevel_plex error -progressurl http://127.0.0.1:32400/video/:/transcode/session/pptm6wy0hcc53yeeox6loc12/72ba05a8-6082-4c7f-874d-1bd14d0272fc/progress

```

But the output is Vaapi not Nvidia.

If it were nvidia, it would state so. (nvdec / nvenc )

what driver version is installed ?

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_[View the full topic](https://forums.plex.tv/t/conversion-failed-on-multiple-clients/838060)._