![]() ![]() Repositioning the cards in the slots did not improve the situation either. ![]() Even if I release the graphics card and the audio from the graphics card individually to the VM, the problem does not change. The graphics card is output to the VM complete with all functions via PCIE pass-through. The Nvidia High Definition Audio Device is simply missing, which is why the driver for it cannot be installed. I have already tested various configurations. Nvidia GTX1080TI - secondary card for guest VM However, I have also found configs with comparable hardware where it also runs perfectly. Either a little something is wrongly set in the BIOS or there is a problem with the hardware itself. So I think it's a problem with the server's host system. However, the image is output hardware-accelerated via the GPU without any problems. Although it works with this card in the other Proxmox server. With the same result: no Nvidia high definition audio device. To check, I tested this card in the system with the 1080TI. I have another Proxmox server in operation in which an Nvidia Quadro P400 runs for a VM with passtrough. I've tried everything possible and can't get any further. That’s why HDMI cable plays an important role to get audio to the other source. The GPU doesn’t have any analog audio output. I have the problem that I cannot get one of my Proxmox servers to output the audio signal via HDMI from a GTX1080TI graphics card connected via PCIE passtrough. NVIDIA HD audio driver uses the GPU sound controller and is responsible for sending the audio to the outer source through HDMI. Therefore I am now turning to the International Forum, in the hope that you can help me. ![]()
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