Popping in left ear when wearing headphones

Support Audio
5

Most likely it is pipewire and the 5 sec idle pop when it suspends. Most soundcards suspend quietly, some not.

mkdir -pv  ~/.config/wireplumber/main.lua.d/
nano ~/.config/wireplumber/main.lua.d/51-disable-suspension.lua

Then put this into it:

table.insert (alsa_monitor.rules, {
  matches = {
    {
      -- Matches all sources.
      { "node.name", "matches", "alsa_input.*" },
    },
    {
      -- Matches all sinks.
      { "node.name", "matches", "alsa_output.*" },
    },
  },
  apply_properties = {
    ["session.suspend-timeout-seconds"] = 0,  -- 0 disables suspend
  },
})

Then restart pipewire:

systemctl --user restart pipewire.service

:notebook: That config modfies this system config: /usr/share/wireplumber/main.lua.d/50-alsa-config.lua