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On Thu, May 20, 2021 at 2:35 AM Arve Barsnes <arve.barsnes@×××××.com> wrote: |
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> |
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> Hello, |
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> |
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> Resending this message, as the last time it was derailed by a question |
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> about DE and pulseaudio, neither of which are relevant to this |
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> low-level problem (and also not installed anyway, as I run a simple |
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> openbox WM with alsa only). |
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> |
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> Does anyone know anything about how to check audio through Nvidia HDMI |
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outputs? |
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> |
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> My regular audio is through the motherboard output, and I also have a |
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> USB soundcard that I regularly use without trouble, but my HDMI is a |
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> different matter. |
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> |
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> I have a GTX 1080 card with two HDMI outputs, the first connected to |
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> my main monitor, and the second connected to a TV. I've managed to |
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> play sound through my monitor with aplay, but no luck with the TV. |
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> |
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> aplay reports: |
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> $ aplay -l |
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> card 1: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0] |
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> Subdevices: 1/1 |
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> Subdevice #0: subdevice #0 |
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> card 1: NVidia [HDA NVidia], device 7: HDMI 1 [HDMI 1] |
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> Subdevices: 1/1 |
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> Subdevice #0: subdevice #0 |
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> card 1: NVidia [HDA NVidia], device 8: HDMI 2 [HDMI 2] |
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> Subdevices: 1/1 |
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> Subdevice #0: subdevice #0 |
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> card 1: NVidia [HDA NVidia], device 9: HDMI 3 [HDMI 3] |
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> Subdevices: 1/1 |
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> Subdevice #0: subdevice #0 |
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> card 1: NVidia [HDA NVidia], device 10: HDMI 4 [HDMI 4] |
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> Subdevices: 1/1 |
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> Subdevice #0: subdevice #0 |
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> card 1: NVidia [HDA NVidia], device 11: HDMI 5 [HDMI 5] |
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> Subdevices: 1/1 |
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> Subdevice #0: subdevice #0 |
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> card 1: NVidia [HDA NVidia], device 12: HDMI 6 [HDMI 6] |
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> Subdevices: 1/1 |
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> Subdevice #0: subdevice #0 |
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> |
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> To get sound through the monitor: |
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> aplay -D plughw:1,7 sample.wav |
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> |
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> No luck on any of the other 6 devices reported. I suspect there might |
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> be a setting somewhere on the Nvidia side that limits sound output to |
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> one of these, and if that is so, I'd rather have the TV able to get |
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> sound, as my computer have separate speakers and no need for the HDMI |
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> sound output. |
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> |
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> Any ideas for troubleshooting this welcome. |
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> |
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> Regards, |
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> Arve |
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|
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Arve, |
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I'm very sorry that when you asked this question a month ago you didn't |
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like my answer. It was never my intention to 'derail' your question with DE |
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or pulseaudio. That said no one else has answered that question nor have |
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they responded to this one that you posted yesterday. I think you are in a |
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fairly unique setup that most people don't deal with but it is an |
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interesting area. I'd still like to help if I can. |
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|
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To start please run the following command and let's see what ALSA tells |
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us: |
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cat /proc/asound/card*/eld#0.* |
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|
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Good luck, |
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Mark |
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