Server Version#:1.40.2.8395
recently HW transcoding stopped working on my server setup in a docker on unraid, I noticed it as I was watching a movie on a kindle tablet and doing some other work on my home server. the sever cpu was running at 80 to 90 percent so i checked the plex dashboard and sure enough plex was using the cpu to transcode this movie. After some reading if found this in the log, see below, I am unsure of how to get this to work again I have tried going back a version and that just gave me a database error.
Jun 07, 2024 19:51:46.103 [23153896524600] Debug — [Req#777b/Transcode] Codecs: hardware transcoding: opening hw device failed - probably not supported by this system, error: I/O error
Jun 07, 2024 19:51:46.103 [23153896524600] Debug — [Req#777b/Transcode] Could not create hardware context for hevc
Jun 07, 2024 19:51:46.111 [23153896524600] Debug — [Req#777b/Transcode] Codecs: testing hevc (decoder) with hwdevice vaapi
Jun 07, 2024 19:51:46.112 [23153896524600] Debug — [Req#777b/Transcode] Codecs: hardware transcoding: testing API vaapi for device ‘/dev/dri/renderD128’ (Alder Lake-S GT1 [UHD Graphics 730])
Jun 07, 2024 19:51:46.113 [23153896524600] Error — [Req#777b/Transcode] [FFMPEG] - Failed to initialise VAAPI connection: -1 (unknown libva error).