I am not able to hear sound through my Yamaha receiver on Ubuntu 20.10. It is connected via the HDMI port on my Nvidia 2080TI. On Windows, there's a red HDMI symbol on my receiver indicating that it's connected. This does not appear on Ubuntu. I am connected to my Samsung CRG90 monitor via the display port from my GPU.
When I go to settings then sound in Ubuntu, it does not give me the option to select HDMI audio.
If I type pulseaudio -k in the terminal, HDMI/DisplayPort 2 - TU102 High Definition Audio Controller appears in the sound settings. When I select this, I still don't get any sound through my receiver and it still doesn't show the red HDMI symbol on the receiver.
My receiver shows as a display device under Displays in my settings, even though I am not running my monitor through it. So, I know that my computer is able to detect my receiver.
I also see TU102 listed in pulse audio volume control.
I've gone through many of the other questions, such as this one: Unable to get audio through HDMI connection to TV with Ubuntu 14.04 and have tried the suggestions listed and nothing seems to work.
I don't see a etc/modprobe.d/sound.conf or a /etc/modprobe.d/nvidiahdmi.conf file. Could that be the issue?
I've attached the following images: Sound settings etc/modprobe.d files pulse audio volume control configuration pulse audio volume control output devices alsamixer aplay -l
Thanks!
