# Arc A310 Transcoding Failure
**URL:** https://forums.plex.tv/t/arc-a310-transcoding-failure/900951
**Category:** General Discussions
**Tags:** server-truenas, hardware
**Created:** [January 4, 2025, 4:54am UTC](https://forums.plex.tv/t/arc-a310-transcoding-failure/900951 "2025-01-04T04:54:02Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@ehrie](https://forums.plex.tv/u/ehrie)
#### Post date: [January 4, 2025, 4:54am UTC](https://forums.plex.tv/t/arc-a310-transcoding-failure/900951/1 "2025-01-04T04:54:02Z")
Hello, hopefully someone had run into these errors and can give me some help troubleshooting them. I have Plex on a TrueNAS Scale server, the video card is in an Asrock x570D4U motherboard. I have an active Plex Pass and my transcoding is turned on, but never works. My console throws these errors:
[Req#243c/Transcode] Codecs: testing hevc (decoder) with hwdevice vaapi
[Req#f6a/Transcode] Codecs: hardware transcoding: testing API vaapi for device ‘/dev/dri/renderD128’ (Intel DG2 [Arc A310])
[Req#19d6/Transcode] [FFMPEG] - Failed to initialise VAAPI connection: -1 (unknown libva error).
[Req#19d6/Transcode] Codecs: hardware transcoding: opening hw device failed - probably not supported by this system, error: I/O error.
lsgpu returns:
truenas\_admin@Pounce[~]$ lsgpu
card0 Intel Dg2 (Gen12) drm:/dev/dri/card0
└─renderD128 drm:/dev/dri/renderD128
So I know it’s there. Plex seems to be trying to access it and just isn’t. How do I go about troubleshooting this?
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### Author:  [@ehrie](https://forums.plex.tv/u/ehrie)
#### Post date: [January 5, 2025, 4:01am UTC](https://forums.plex.tv/t/arc-a310-transcoding-failure/900951/2 "2025-01-05T04:01:31Z")
Did I ask this in the wrong forum?
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### Author:  [@system](https://forums.plex.tv/u/system)
#### Post date: [April 22, 2026, 1:56pm UTC](https://forums.plex.tv/t/arc-a310-transcoding-failure/900951/3 "2026-04-22T13:56:23Z")
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