SOLVED: Hardware transcoding - Failed to get number of OpenCL platforms: -1001

[asktoomuch]

Hello!

I'm struggling to enable hardware transcoding on my Jellyfin instance, I hope you can help me.

I'm following the guide here (https://jellyfin.org/docs/general/admini...linux-host) and I am encountering an error when checking the OpenCL runtime status:

Code:

~$ sudo /usr/lib/jellyfin-ffmpeg/ffmpeg -v verbose -init_hw_device vaapi=va:/dev/dri/renderD129 -init_hw_device opencl@va
ffmpeg version 7.0.2-Jellyfin Copyright (c) 2000-2024 the FFmpeg developers
  built with gcc 13 (Ubuntu 13.3.0-6ubuntu2~24.04)
  configuration: --prefix=/usr/lib/jellyfin-ffmpeg --target-os=linux --extra-version=Jellyfin --disable-doc --disable-ffplay --disable-ptx-compression --disable-static --disable-libxcb --disable-sdl2 --disable-xlib --enable-lto=auto --enable-gpl --enable-version3 --enable-shared --enable-gmp --enable-gnutls --enable-chromaprint --enable-opencl --enable-libdrm --enable-libxml2 --enable-libass --enable-libfreetype --enable-libfribidi --enable-libfontconfig --enable-libharfbuzz --enable-libbluray --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libopenmpt --enable-libdav1d --enable-libsvtav1 --enable-libwebp --enable-libvpx --enable-libx264 --enable-libx265 --enable-libzvbi --enable-libzimg --enable-libfdk-aac --arch=amd64 --enable-libshaderc --enable-libplacebo --enable-vulkan --enable-vaapi --enable-amf --enable-libvpl --enable-ffnvcodec --enable-cuda --enable-cuda-llvm --enable-cuvid --enable-nvdec --enable-nvenc
  libavutil      59.  8.100 / 59.  8.100
  libavcodec    61.  3.100 / 61.  3.100
  libavformat    61.  1.100 / 61.  1.100
  libavdevice    61.  1.100 / 61.  1.100
  libavfilter    10.  1.100 / 10.  1.100
  libswscale      8.  1.100 /  8.  1.100
  libswresample  5.  1.100 /  5.  1.100
  libpostproc    58.  1.100 / 58.  1.100
[AVHWDeviceContext @ 0x59dc07380740] libva: VA-API version 1.22.0
[AVHWDeviceContext @ 0x59dc07380740] libva: Trying to open /usr/lib/jellyfin-ffmpeg/lib/dri/iHD_drv_video.so
[AVHWDeviceContext @ 0x59dc07380740] libva: Found init function __vaDriverInit_1_22
[AVHWDeviceContext @ 0x59dc07380740] libva: va_openDriver() returns 0
[AVHWDeviceContext @ 0x59dc07380740] Initialised VAAPI connection: version 1.22
[AVHWDeviceContext @ 0x59dc07380740] VAAPI driver: Intel iHD driver for Intel(R) Gen Graphics - 25.1.0 (aa5ca48).
[AVHWDeviceContext @ 0x59dc07380740] Driver not found in known nonstandard list, using standard behaviour.
[AVHWDeviceContext @ 0x59dc073b5640] Failed to get number of OpenCL platforms: -1001.
Device creation failed: -19.
Failed to set value 'opencl@va' for option 'init_hw_device': No such device
Error parsing global options: No such device

Here is some information about my setup:

• Host machine: Intel Skull Canyon NUC (NUC6i7KYK)
  
• Host OS: VMware ESXi-8.0U3d
  
• Host GPU: Intel Iris Pro 580 (Skylake iGPU)
  
• Guest VM: Ubuntu 24.10 (Oracular Oriole)
  
• Kernel version: 6.11.0-21-generic
  
• Jellyfin: 10.10.6
  
• Installation method: APT repository (no Docker)
  

Jellyfin and jellyfin-ffmpeg7 are installed:

Code:

~$ sudo apt list --installed jellyfin*
jellyfin-ffmpeg7/now 7.0.2-9-noble amd64 [installed,local]
jellyfin-server/now 10.10.6+ubu2404 amd64 [installed,local]
jellyfin-web/now 10.10.6+ubu2404 all [installed,local]
jellyfin/now 10.10.6+ubu2404 all [installed,local]

The iGPU is exposed to the guest VM (see last entry below):

Code:

~$ lspci
00:00.0 Host bridge: Intel Corporation 440BX/ZX/DX - 82443BX/ZX/DX Host bridge (rev 01)
00:01.0 PCI bridge: Intel Corporation 440BX/ZX/DX - 82443BX/ZX/DX AGP bridge (rev 01)
00:07.0 ISA bridge: Intel Corporation 82371AB/EB/MB PIIX4 ISA (rev 08)
00:07.1 IDE interface: Intel Corporation 82371AB/EB/MB PIIX4 IDE (rev 01)
00:07.3 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ACPI (rev 08)
00:07.7 System peripheral: VMware Virtual Machine Communication Interface (rev 10)
00:0f.0 VGA compatible controller: VMware SVGA II Adapter
02:00.0 Serial Attached SCSI controller: VMware PVSCSI SCSI Controller (rev 02)
02:01.0 USB controller: VMware USB1.1 UHCI Controller
02:02.0 Ethernet controller: VMware VMXNET3 Ethernet Controller (rev 01)
02:03.0 USB controller: VMware USB2 EHCI Controller
02:04.0 SATA controller: VMware SATA AHCI controller
02:05.0 VGA compatible controller: Intel Corporation Iris Pro Graphics 580 (rev 09)

The render device is visible (renderD129):

Code:

~$ ls -l /dev/dri
total 0
drwxr-xr-x 2 root root        120 Mar 31 18:26 by-path
crw-rw---- 1 root video  226,  0 Mar 31 18:26 card0
crw-rw---- 1 root video  226,  1 Mar 31 18:26 card1
crw-rw---- 1 root render 226, 128 Mar 31 18:26 renderD128
crw-rw---- 1 root render 226, 129 Mar 31 18:26 renderD129

I have added the Jellyfin user to the render group:

Code:

~$ sudo groups jellyfin
jellyfin : jellyfin video render

I have installed the lastest openCL drivers from Intel (https://dgpu-docs.intel.com/driver/clien...ktop-24-10)

Code:

$ sudo apt policy intel-opencl-icd
intel-opencl-icd:
  Installed: 25.09.32961.7
  Candidate: 25.09.32961.7
  Version table:
*** 25.09.32961.7 100
        100 /var/lib/dpkg/status
    25.05.32567.18-1~24.10~ppa1 500
        500 https://ppa.launchpadcontent.net/kobuk-team/intel-graphics/ubuntu oracular/main amd64 Packages
    24.35.30872.24-1 500
        500 http://ch.archive.ubuntu.com/ubuntu oracular/universe amd64 Packages

I have verified that the Iris Pro 580 iGPU supports both VA-API and QSV:

Code:

$ sudo /usr/lib/jellyfin-ffmpeg/vainfo --display drm --device /dev/dri/renderD129
Trying display: drm
libva info: VA-API version 1.22.0
libva info: Trying to open /usr/lib/jellyfin-ffmpeg/lib/dri/iHD_drv_video.so
libva info: Found init function __vaDriverInit_1_22
libva info: va_openDriver() returns 0
vainfo: VA-API version: 1.22 (libva 2.22.0)
vainfo: Driver version: Intel iHD driver for Intel(R) Gen Graphics - 25.1.0 (aa5ca48)
vainfo: Supported profile and entrypoints
      VAProfileNone                  : VAEntrypointVideoProc
      VAProfileNone                  : VAEntrypointStats
      VAProfileMPEG2Simple            : VAEntrypointVLD
      VAProfileMPEG2Simple            : VAEntrypointEncSlice
      VAProfileMPEG2Main              : VAEntrypointVLD
      VAProfileMPEG2Main              : VAEntrypointEncSlice
      VAProfileH264Main              : VAEntrypointVLD
      VAProfileH264Main              : VAEntrypointEncSlice
      VAProfileH264Main              : VAEntrypointFEI
      VAProfileH264Main              : VAEntrypointEncSliceLP
      VAProfileH264High              : VAEntrypointVLD
      VAProfileH264High              : VAEntrypointEncSlice
      VAProfileH264High              : VAEntrypointFEI
      VAProfileH264High              : VAEntrypointEncSliceLP
      VAProfileVC1Simple              : VAEntrypointVLD
      VAProfileVC1Main                : VAEntrypointVLD
      VAProfileVC1Advanced            : VAEntrypointVLD
      VAProfileJPEGBaseline          : VAEntrypointVLD
      VAProfileJPEGBaseline          : VAEntrypointEncPicture
      VAProfileH264ConstrainedBaseline: VAEntrypointVLD
      VAProfileH264ConstrainedBaseline: VAEntrypointEncSlice
      VAProfileH264ConstrainedBaseline: VAEntrypointFEI
      VAProfileH264ConstrainedBaseline: VAEntrypointEncSliceLP
      VAProfileVP8Version0_3          : VAEntrypointVLD
      VAProfileVP8Version0_3          : VAEntrypointEncSlice
      VAProfileHEVCMain              : VAEntrypointVLD
      VAProfileHEVCMain              : VAEntrypointEncSlice
      VAProfileHEVCMain              : VAEntrypointFEI

But as mentioned above, when I try to verify the setup running the ffmpeg command from the wiki, I get this error:

"Failed to get number of OpenCL platforms: -1001.
Device creation failed: -19.
Failed to set value 'opencl@va' for option 'init_hw_device': No such device"

I am not 100% sure it is loading the correct driver, as the command mention "VAAPI driver: Intel iHD driver for Intel® Gen Graphics - 25.1.0 (aa5ca4.", when I am supposed to have v25.09 installed according the "intel-opencl-icd" package version, but maybe these versions don't refer to the same thing.

Do you know how I can troubleshoot further? Whenever I try to enable hardware transcoding, either QSV or VA-API, and launch a stream with transcoding, Jellyfin just returns an error.

I'm happy to provide more information if you need it.

Thanks for your help!