How to enable Starship/Matisse HD Audio Controller?

I have two sound output options on my Ubuntu 20.10 machine.

One is the HDMI audio that runs to my monitor's headphone jack.

The other is the built-in HD audio on my motherboard.

I can't seem to enable the one on my motherboard. The only profile option in the audio settings is "off".

Here is my lspci output:

$ lspci -k | grep -A 4 Audio
28:00.4 Audio device: Advanced Micro Devices, Inc. [AMD] Starship/Matisse HD Audio Controller Subsystem: Micro-Star International Co., Ltd. [MSI] Starship/Matisse HD Audio Controller Kernel driver in use: snd_hda_intel Kernel modules: snd_hda_intel

and lshw:

$ sudo lshw -class multimedia *-multimedia description: Audio device product: TU116 High Definition Audio Controller vendor: NVIDIA Corporation physical id: 0.1 bus info: pci@0000:26:00.1 version: a1 width: 32 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list configuration: driver=snd_hda_intel latency=0 resources: irq:64 memory:fc080000-fc083fff *-multimedia description: Audio device product: Starship/Matisse HD Audio Controller vendor: Advanced Micro Devices, Inc. [AMD] physical id: 0.4 bus info: pci@0000:28:00.4 version: 00 width: 32 bits clock: 33MHz capabilities: pm pciexpress msi bus_master cap_list configuration: driver=snd_hda_intel latency=0 resources: irq:66 memory:fc400000-fc407fff

not sure what other info I should provide. The sound thru my HDMI output works fine, but I'd like to be able to use the other one also.

1 Answer

Enable Starship/Matisse HD Audio Controller?

Here’s what I did:

1. run pavucontrol

2. under the Configuration tab (all the way to the right - it might not be visible initially), disable any audio devices you don’t intend to use

3. under the “Output Devices” tab, select “Port: Headphones (unplugged)”

4. To make the change permanent, edit the default.pa file with elevated privileges:

   sudo {text editor of choice} /etc/pulse/default.pa`

   ^{Note: Be sure to replace {text editor of choice} with your {text editor of choice}.}

   Add the following to the end of the file:

   set-sink-port 0 analog-output-headphones

To list all of the details of your sound devices, you can run pactl list cards. When referencing the device number in /etc/pulse/default.pa, be sure to use the value under alsa.card and NOT the initial Card # listing. In my case Card#0 was alsa.card = "1" and vice versa.

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