Encoding fails on Intel iGPU UHD 630 of i5 8500T

[andreamassaro9]

Hello everyone, I’m experiencing consistent VAAPI encoding failures using vertd on an Intel iGPU.
The service starts correctly and detects the GPU and VAAPI device, but hardware-accelerated encoders fail at runtime.

The input video is .mp4 and the tested output formats are mkv and mpeg-2.

Environment details and full logs are included below.

services:
vertd:
container_name: vertd-video
image: ghcr.io/vert-sh/vertd:latest
environment:
- ADMIN_PASSWORD=3339973555aA!
- PUBLIC_URL=https://myvertvideo.xcv.bnm.plk
ports:
- "24153:24153"
devices:
- /dev/dri:/dev/dri

START

[2026-01-26T08:47:25Z INFO vertd] starting vertd
[2026-01-26T08:47:25Z INFO vertd] working w/ ffmpeg 6.1.1-3ubuntu5 and ffprobe 6.1.1-3ubuntu5
[2026-01-26T08:47:25Z INFO vertd] detected an Intel GPU -- if this isn't your vendor, open an issue.
[2026-01-26T08:47:25Z INFO vertd] using VA-API device path: /dev/dri/renderD128
[2026-01-26T08:47:25Z INFO vertd::http] http server listening on 0.0.0.0:24153

TO MKV

[2026-01-26T08:47:42Z INFO vertd::converter] running 'ffmpeg -hide_banner -loglevel error -progress pipe:1 -hwaccel vaapi -vaapi_device /dev/dri/renderD128 -hwaccel_output_format vaapi -i input/49d14cc6-0c4f-4788-81ff-3a34b7f7b72c.mp4 -c:v h264_vaapi -c:a aac -strict experimental -preset medium -b:v 10519045 -map_metadata 0 -map_chapters 0 output/49d14cc6-0c4f-4788-81ff-3a34b7f7b72c.mkv'
[2026-01-26T08:47:42Z ERROR vertd::converter] [h264_vaapi @ 0x57119bbbdd00] Driver does not support any RC mode compatible with selected options (supported modes: CQP).
[2026-01-26T08:47:42Z ERROR vertd::converter] [vost#0:0/h264_vaapi @ 0x57119bb7c400] Error while opening encoder - maybe incorrect parameters such as bit_rate, rate, width or height.
[2026-01-26T08:47:42Z ERROR vertd::converter] Error while filtering: Invalid argument
[2026-01-26T08:47:42Z ERROR vertd::converter] [out#0/matroska @ 0x57119bb2b800] Nothing was written into output file, because at least one of its streams received no packets.
[2026-01-26T08:47:42Z ERROR vertd::http::services::websocket] job 49d14cc6-0c4f-4788-81ff-3a34b7f7b72c failed
[2026-01-26T08:47:42Z ERROR vertd::http::services::websocket] failed to handle job failure: environment variable not found

TO MPEG-2

[2026-01-26T08:48:39Z WARN vertd::converter::speed] MPEG format does not support speed settings
[2026-01-26T08:48:39Z INFO vertd::converter] running 'ffmpeg -hide_banner -loglevel error -progress pipe:1 -hwaccel vaapi -vaapi_device /dev/dri/renderD128 -hwaccel_output_format vaapi -i input/cec0e90d-2d13-45f3-a189-2d54bfdc73e3.mp4 -c:v mpeg2_vaapi -c:a mp2 -b:v 10519045 -map_metadata 0 -map_chapters 0 output/cec0e90d-2d13-45f3-a189-2d54bfdc73e3.mpeg'
[2026-01-26T08:48:39Z ERROR vertd::converter] [mpeg2_vaapi @ 0x6425da9f62c0] No usable encoding entrypoint found for profile VAProfileMPEG2Main (1).
[2026-01-26T08:48:39Z ERROR vertd::converter] [vost#0:0/mpeg2_vaapi @ 0x6425da9b77c0] Error while opening encoder - maybe incorrect parameters such as bit_rate, rate, width or height.
[2026-01-26T08:48:39Z ERROR vertd::converter] Error while filtering: Function not implemented
[2026-01-26T08:48:39Z ERROR vertd::converter] [out#0/mpeg @ 0x6425da9646c0] Nothing was written into output file, because at least one of its streams received no packets.
[2026-01-26T08:48:39Z ERROR vertd::http::services::websocket] job cec0e90d-2d13-45f3-a189-2d54bfdc73e3 failed
[2026-01-26T08:48:39Z ERROR vertd::http::services::websocket] failed to handle job failure: environment variable not found