Nvidia /CUDA hardware acceleration

[KpochMX]

Describe the bug
Cant use hardware acceleration "VK_ERROR_INCOMPATIBLE_DRIVER" using VULKAN argument also CUDA do not detect any device (im using an external GPU GTX 1650)

Also DOCX to PDF using Calibre says almost the same

2025-09-18 00:35:36

QRhiGles2: Failed to create context
2025-09-18 00:35:36

This plugin does not support createPlatformVulkanInstance
2025-09-18 00:35:36

QVulkanInstance: Failed to initialize Vulkan
2025-09-18 00:35:36

Unable to detect GPU vendor.
2025-09-18 00:35:36

WebEngineContext is used before QtWebEngineQuick::initialize() or OpenGL context creation failed.

To Reproduce
Steps to reproduce the behavior:

1. Go to 'convert'
2. Click on 'select MKV to MP4'
3. See error

it convert using CPU but not GPU this is my config file

# docker-compose.yml
services:
  convertx:
    image: ghcr.io/c4illin/convertx
    container_name: convertx
    restart: unless-stopped
    ports:
      - "3000:3000"
    environment:
      - QTWEBENGINE_CHROMIUM_FLAGS= --no-sandbox
      - ALLOW_UNAUTHENTICATED=true
      - TZ=America/Mexico_city
      #- FFMPEG_ARGS=-hwaccel vulkan  commented to check if CPU transcoding works and it does but no gpu
    volumes:
      - ./data:/app/data
      

Console error

[AVHWDeviceContext @ 0x569663605100] Instance creation failure: VK_ERROR_INCOMPATIBLE_DRIVER
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Device creation failed: -542398533.
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[vist#0:0/h264 @ 0x569663609880] [dec:h264 @ 0x569663609e40] No device available for decoder: device type vulkan needed for codec h264.
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[vist#0:0/h264 @ 0x569663609880] [dec:h264 @ 0x569663609e40] Hardware device setup failed for decoder: Generic error in an external library
2025-09-18 00:12:54


Error opening output file ./data/output/173455315277702/13/sample_1280x720_surfing_with_audio.mp4.
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Error opening output files: Generic error in an external library
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2025-09-18 00:12:54


Failed to convert ./data/uploads/173455315277702/13/sample_1280x720_surfing_with_audio.mkv from mkv to mp4 using ffmpeg. error: Error: Command failed: ffmpeg -hwaccel vulkan -i ./data/uploads/173455315277702/13/sample_1280x720_surfing_with_audio.mkv ./data/output/173455315277702/13/sample_1280x720_surfing_with_audio.mp4
2025-09-18 00:12:54

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