On-board sound no-longer works after a swath of tinkering

Support Sound
1

I still have audio from my monitors via HDMI, but the only sound I’ve been getting out of my 3.5mm headphone jack is periodic crackling of static. Everything was working fine a few days ago, I think it stopped working following a reboot after I had been playing around with audio loopback solutions.

So, how can I help you, help me? What sort of information do I need to provide to troubleshoot this issue?

2

Can you explain what tinkering you have done and what you have tried so far to rectify the issue? Some basic information about your system would be helpful. Please read:

https://forum.manjaro.org/t/how-to-provide-good-information/874/45

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First up, system information:

System:
  Kernel: 5.12.9-1-MANJARO x86_64 bits: 64 compiler: gcc v: 11.1.0 
  Desktop: GNOME 3.38.4 tk: GTK 3.24.29 wm: gnome-shell dm: GDM 40.0 
  Distro: Manjaro Linux base: Arch Linux 
Machine:
  Type: Desktop Mobo: ASRock model: B450M Pro4 serial: <filter> 
  UEFI-[Legacy]: American Megatrends v: P3.80 date: 09/11/2019 
CPU:
  Info: 6-Core model: AMD Ryzen 5 3600 bits: 64 type: MT MCP arch: Zen 2 
Graphics:
  Device-1: NVIDIA GP106 [GeForce GTX 1060 3GB] vendor: Micro-Star MSI 
  driver: nvidia v: 465.31 alternate: nouveau,nvidia_drm bus-ID: 06:00.0 
Audio:
  Device-1: NVIDIA GP106 High Definition Audio vendor: Micro-Star MSI 
  driver: snd_hda_intel v: kernel bus-ID: 06:00.1 chip-ID: 10de:10f1 
  class-ID: 0403 
  Device-2: AMD Starship/Matisse HD Audio vendor: ASRock driver: snd_hda_intel 
  v: kernel bus-ID: 08:00.4 chip-ID: 1022:1487 class-ID: 0403 
  Device-3: Logitech HD Pro Webcam C920 type: USB 
  driver: snd-usb-audio,uvcvideo bus-ID: 1-2:4 chip-ID: 046d:082d 
  class-ID: 0102 serial: <filter> 
  Sound Server-1: ALSA v: k5.12.9-1-MANJARO running: yes 
  Sound Server-2: JACK v: 1.9.18 running: no 
  Sound Server-3: PulseAudio v: 14.2 running: yes 
  Sound Server-4: PipeWire v: 0.3.30 running: yes

Now for what I’ve done on my PC… In no particular order I have:
• Loaded and unloaded audio modules with pactl. (null-sinks)
• Installed, played with, and uninstalled Jack
• Tried reseting, rebooting, and reinstalling ALSA and pulseaudio.
• Created a blank .asoundrc (Tried a few thing, but its’ ultimately empty now)

Here’s a (slightly pruned) extensive list of the commands I’ve ran… — Hopefully I didn’t forget to prune something personal.

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