Intel Arc A380 DVXA2 Hardware Acceleration not working in Windows?

[compsmith]

I received a A380 today and promptly installed it in my Windows Server 2019 Plex server with an older Xeon v5 with iGPU, no resizable bar available.
Latest Intel drivers installed but not the Arc controller. Disabled the iGPU and ran some tests. Plex is not utilizing the A380 for transcoding. 
I have been testing this on the Plex forums and it seems that dvxa2 is not implemented. When and/or will this be implemented?

https://forums.plex.tv/t/hardware-support-for-intel-arc-alchemist-gpus-being-explored/797301

C:>mpv.com h264.mkv -vo=gpu -hwdec=dxva2

[vd] Opening decoder h264
[vd] Looking at hwdec h264-dxva2...
[vo/gpu] Loading hwdec drivers for format: 'dxva2_vld'
[vo/gpu] Loading hwdec driver 'dxva2-egl'
[vo/gpu] Loading failed.
[vo/gpu] Loading hwdec driver 'dxva2-dxgi'
[vo/gpu] Loading hwdec driver 'dxva2-dxinterop'
[vo/gpu] Loading failed.
[vd] Trying hardware decoding via h264-dxva2.
[vd] Pixel formats supported by decoder: cuda dxva2_vld d3d11va_vld d3d11 yuv420p
[vd] Codec profile: High (0x64)
[vd] Requesting pixfmt 'dxva2_vld' from decoder.
[ffmpeg/video] h264: Failed to retrieve decoder device GUIDs
[ffmpeg/video] h264: Failed setup for format dxva2_vld: hwaccel initialisation returned error.
[vd] Pixel formats supported by decoder: cuda d3d11va_vld d3d11 yuv420p yuv420p
[vd] Codec profile: High (0x64)
[vd] Requesting pixfmt 'yuv420p' from decoder.
[vd] Selected codec: h264 (H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10)
[vf] User filter list:
[vf]   (empty)
[ad] Codec list:
[ad]     dca (dts) - DCA (DTS Coherent Acoustics)
[ad] Opening decoder dca
[ad] Requesting 1 threads for decoding.
[ad] Selected codec: dca (DCA (DTS Coherent Acoustics))
[af] User filter list:
[af]   (empty)
[cplayer] Starting playback...
[vd] Falling back to software decoding.

 C:>mpv.com h265.mkv -vo=gpu -hwdec=dxva2

[vd] Opening decoder hevc
[vd] Looking at hwdec hevc-dxva2...
[vo/gpu] Loading hwdec drivers for format: 'dxva2_vld'
[vo/gpu] Loading hwdec driver 'dxva2-egl'
[vo/gpu] Loading failed.
[vo/gpu] Loading hwdec driver 'dxva2-dxgi'
[vo/gpu] Loading hwdec driver 'dxva2-dxinterop'
[vo/gpu] Loading failed.
[vd] Trying hardware decoding via hevc-dxva2.
[vd] Selected codec: hevc (HEVC (High Efficiency Video Coding))
[vf] User filter list:
[vf]   (empty)
[ad] Codec list:
[ad]     truehd - TrueHD
[ad] Opening decoder truehd
[ad] Requesting 1 threads for decoding.
[ad] Selected codec: truehd (TrueHD)
[af] User filter list:
[af]   (empty)
[cplayer] Starting playback...
[vd] Pixel formats supported by decoder: dxva2_vld d3d11va_vld d3d11 cuda yuv420p10le
[vd] Codec profile: Main 10 (0x2)
[vd] Requesting pixfmt 'dxva2_vld' from decoder.
[ffmpeg/video] hevc: Failed to retrieve decoder device GUIDs
[ffmpeg/video] hevc: Failed setup for format dxva2_vld: hwaccel initialisation returned error.
[vd] Pixel formats supported by decoder: d3d11va_vld d3d11 cuda yuv420p10le yuv420p10le
[vd] Codec profile: Main 10 (0x2)
[vd] Requesting pixfmt 'yuv420p10le' from decoder.
[af] [in] 48000Hz 7.1 8ch s32
[af] [userspeed] 48000Hz 7.1 8ch s32
[af] [userspeed] (disabled)
[af] [convert] 48000Hz 7.1 8ch s32
[vd] Falling back to software decoding.

[Andres_Intel]

Hello @Raptor2123,

To answer that questions please create a new thread, and we will more than glad to help you.

Best regards, 

Andres P.  

Intel Customer Support Technician 

[Andres_Intel]

Hello compsmith,

Were you able to check the previous post?  

Let us know if you still need assistance.   

Best regards,  

Andres P.  

Intel Customer Support Technician

[Andres_Intel]

Hello compsmith,

We have not heard back from you, so we will close this thread. If you need any additional information, please submit a new question as this thread will no longer be monitored.  

Best regards, 

Andres P.  

Intel Customer Support Technician