On Sat, May 1, 2021 at 5:03 AM Arve Barsnes <arve.bars...@gmail.com> wrote: > > Hello, > > Does anyone know anything about how to check audio through Nvidia HDMI outputs? > > My regular audio is through the motherboard output, and I also have a > USB soundcard that I regularly use without trouble, but my HDMI is a > different matter. > > I have a GTX 1080 card with two HDMI outputs, the first connected to > my main monitor, and the second connected to a TV. I've managed to > play sound through my monitor with aplay, but no luck with the TV. > > aplay reports: > $ aplay -l > card 1: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0] > Subdevices: 1/1 > Subdevice #0: subdevice #0 > card 1: NVidia [HDA NVidia], device 7: HDMI 1 [HDMI 1] > Subdevices: 1/1 > Subdevice #0: subdevice #0 > card 1: NVidia [HDA NVidia], device 8: HDMI 2 [HDMI 2] > Subdevices: 1/1 > Subdevice #0: subdevice #0 > card 1: NVidia [HDA NVidia], device 9: HDMI 3 [HDMI 3] > Subdevices: 1/1 > Subdevice #0: subdevice #0 > card 1: NVidia [HDA NVidia], device 10: HDMI 4 [HDMI 4] > Subdevices: 1/1 > Subdevice #0: subdevice #0 > card 1: NVidia [HDA NVidia], device 11: HDMI 5 [HDMI 5] > Subdevices: 1/1 > Subdevice #0: subdevice #0 > card 1: NVidia [HDA NVidia], device 12: HDMI 6 [HDMI 6] > Subdevices: 1/1 > Subdevice #0: subdevice #0 > > To get sound through the monitor: > aplay -D plughw:1,7 sample.wav > > No luck on any of the other 6 devices reported. I suspect there might > be a setting somewhere on the Nvidia side that limits sound output to > one of these, and if that is so, I'd rather have the TV able to get > sound, as my computer have separate speakers and no need for the HDMI > sound output. > > Any ideas for troubleshooting this welcome. > > Regards, > Arve
As posed I don't know that the question is answerable. You don't state what desktop environment you are using. If it happens to be KDE then you will likely need to dig into pulseaudio through the System Settings GUI which could be the controlling feature in that environment. Any other desktop environment I have no experience these days. Good luck, Mark
