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HDMI Audio on NVIDIA GPUs

    https://download.nvidia.com/XFree86/gpu-hdmi-audio-document/
    5 rows

No HDMI audio on Ubuntu | NVIDIA GeForce Forums

    https://www.nvidia.com/en-us/geforce/forums/game-ready-drivers/13/234077/no-hdmi-audio-on-ubuntu/?topicPage=66
    No sound available on the HDMI connection that also suddenly stopped working. I have been away from my docked home office environment for a few weeks now where it was working, but now that I am back, I noticed that the HDMI audio output no longer even appears as an option in the Sound Control Panel. I am on Ubuntu 20.04.

No HDMI audio on Ubuntu | NVIDIA GeForce Forums

    https://www.nvidia.com/en-us/geforce/forums/game-ready-drivers/13/234077/no-hdmi-audio-on-ubuntu/
    No sound available on the HDMI connection that also suddenly stopped working. I have been away from my docked home office environment for a few weeks now where it was working, but now that I am back, I noticed that the HDMI audio output no longer even appears as an option in the Sound Control Panel. I am on Ubuntu 20.04.

No HDMI audio on Ubuntu | NVIDIA GeForce Forums

    https://www.nvidia.com/en-us/geforce/forums/game-ready-drivers/13/234077/no-hdmi-audio-on-ubuntu/?topicPage=6&commentPage=2
    But in Linux it doesn't gives any audio output. Here is some info from Ubuntu. Tested all audio device manually ,but nothing gives any oudio output. 1 sink(s) available. As you can see "hdmi-output-0: HDMI / DisplayPort (priority 5900, latency offset 0 usec, available: no)" It's not available. My system details.

[Solved] Arch ALSA configuration (HDMI, nVidia PCIe card ...

    https://xinabox.blogspot.com/2016/07/solved-arch-alsa-configuration-hdmi.html
    However there is progress: we know ALSA assigned unique names for the two audio chips -- "PCH" and "NVidia".

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