vaInitialize failed with error code -1

Inizia riproducendo il problema con i comandi vainfo, vainfo --display drm e intel_gpu_top indicati su Debian 12, verificando i dispositivi /dev/dri elencati e l’output del driver. Il lavoro è completato quando si determina se il problema è in libva o nel driver GPU installato/nella configurazione e si documentano i passaggi successivi attuabili per la configurazione headless con due GPU.

Hi,

I've spent the last few hours trying to configure hw acceleration on my server but can't seem to get a breakthrough.
I apologize in advance if this isn't a libva issue, but I "think" I installed the right drivers but still can't get things to work, ok I'm not that experienced, but from memory in the past with another system I had succeeded.
Okay, so I have a server with two video cards, one integrated and one added, to be precise I have:
OS -> Debian 12
iGPU -> Intel UHD Graphics 630 integrated with the i5-10400 processor
Esternal GPU -> 01:00.0 VGA compatible controller [0300]: NVIDIA Corporation TU117 [GeForce GTX 1650] [10de:1f82] (rev a1)

I then installed intel-media-va-driver-non-free and nvidia-driver.
For the iGPU I am pretty sure of the drivers, while for the nvidia card, I find my card among both the nouveau and newer drivers, but I've installed the new one like the nvidia-detect advises

nvidia-detect
Detected NVIDIA GPUs:
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation TU117 [GeForce GTX 1650] [10de:1f82] (rev a1)

Checking card:  NVIDIA Corporation TU117 [GeForce GTX 1650] (rev a1)
Your card is supported by all driver versions.
Your card is also supported by the Tesla 470 drivers series.
It is recommended to install the
    nvidia-driver
package.

I rebooted the system but every time I run vainfo this is the output

vainfo
error: XDG_RUNTIME_DIR is invalid or not set in the environment.
error: can't connect to X server!
libva info: VA-API version 1.17.0
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/nvidia_drv_video.so
libva info: va_openDriver() returns -1
vaInitialize failed with error code -1 (unknown libva error),exit

Searching the net I saw that it is possible to run vainfo only for a particular board, so I tried but the result is always the same

ll /dev/dri
totale 0
drwxr-xr-x 2 root root         80 20 apr 20.30 by-path
crw-rw---- 1 root video  226,   0 20 apr 20.30 card0
crw-rw---- 1 root render 226, 128 20 apr 20.30 renderD128

vainfo --display drm --device /dev/dri/renderD128
libva info: VA-API version 1.17.0
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/nvidia_drv_video.so
libva info: va_openDriver() returns -1
vaInitialize failed with error code -1 (unknown libva error),exit

vainfo --display drm --device /dev/dri/card0
libva info: VA-API version 1.17.0
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/nvidia_drv_video.so
libva info: va_openDriver() returns -1
vaInitialize failed with error code -1 (unknown libva error),exit

Also according to intel the iGPU is not installed/detected

intel_gpu_top
No device filter specified and no discrete/integrated i915 devices found

I am at a loss as to what to try next to get it all working.
The end goal is to have both video cards working and use them at "will" in the various dockers installed on the server, obviously the server is headless

Does anyone have any suggestions on how to proceed?

Thanks

J