I run Devuan GNU/Linux 3 Beowulf. My system uses pulseaudio. I have an on-board audio device, 2 GPUs with their own audio capabilities (e.g. via HDMI) and on-board HDMI which goes to my monitor (that does not support sound). Naturally I want to use my on-board audio, which is also the only one connected to any speakers.
My choice of "Built-in Audio" Profile, in pavucontrol, is: "Analog Surround 5.1 Output + Analog Stereo Input (unplugged)".
Problem is, whenever I leave the computer for a while, then come back, I notice the choice has switched to "Digital Stereo (HDMI 2)" for the output.
- How can I make PulseAudio stick to the same choice of profile, even if additional hardware appears or disappears?
- Why is this happening?
Note: Devuan 3 is essentially Debian 10 (Buster) without systemd, so solutions for Debian Buster should apply.