Fresh install - No sounds Nvidia HDMI

[freggel.doe]

I’ve no experience with nvidia hdmi audio, but recently read this:

[Stable Update] 2021-07-13 - Kernels, Plasma 5.22, Cinnamon 5, Gnome 40, LibreOffice, Mesa, Nvidia, Pamac

Bug, probably not related with this update specifically, but it did not resolved it anyway: On my system I got these udev rules (/etc/udev/rules.d/90-mhwd-prime-powermanagement.rules): # Remove NVIDIA USB xHCI Host Controller devices, if present ACTION=="add", SUBSYSTEM=="pci", ATTR{vendor}=="0x10de", ATTR{class}=="0x0c0330", ATTR{remove}="1" # Remove NVIDIA USB Type-C UCSI devices, if present ACTION=="add", SUBSYSTEM=="pci", ATTR{vendor}=="0x10de", ATTR{class}=="0x0c8000", AT…

Check if any udev rules disable/remove hdmi-audio for nvidia on your system