journalctl --boot | grep -E '(snd|pulse|pipewire)'
Apr 04 22:17:22 ubuntu kernel: snd_rn_pci_acp3x 0000:03:00.5: enabling device (0000 -> 0002)
Apr 04 22:17:22 ubuntu kernel: snd_hda_intel 0000:03:00.1: enabling device (0000 -> 0002)
Apr 04 22:17:22 ubuntu kernel: snd_hda_intel 0000:03:00.1: Handle vga_switcheroo audio client
Apr 04 22:17:22 ubuntu kernel: snd_hda_intel 0000:03:00.6: enabling device (0000 -> 0002)
Apr 04 22:17:23 ubuntu kernel: snd_hda_intel 0000:03:00.6: azx_get_response timeout, switching to polling mode: last cmd=0x800f0005
Apr 04 22:17:24 ubuntu kernel: snd_hda_intel 0000:03:00.6: No response from codec, disabling MSI: last cmd=0x800f0005
Apr 04 22:17:26 ubuntu kernel: snd_hda_intel 0000:03:00.6: azx_get_response timeout, switching to single_cmd mode: last cmd=0x800f0005
Apr 04 22:17:26 ubuntu kernel: snd_hda_intel 0000:03:00.1: bound 0000:03:00.0 (ops amdgpu_dm_audio_component_bind_ops [amdgpu])
Apr 04 22:17:27 ubuntu systemd[1697]: Listening on pipewire-pulse.socket - PipeWire PulseAudio.
Apr 04 22:17:27 ubuntu systemd[1697]: Listening on pipewire.socket - PipeWire Multimedia System Sockets.
Apr 04 22:17:27 ubuntu systemd[1697]: Started pipewire.service - PipeWire Multimedia Service.
Apr 04 22:17:27 ubuntu systemd[1697]: Started pipewire-pulse.service - PipeWire PulseAudio.
Apr 04 22:17:27 ubuntu dbus-daemon[1116]: [system] Activating via systemd: service name='org.freedesktop.RealtimeKit1' unit='rtkit-daemon.service' requested by ':1.30' (uid=119 pid=1715 comm="/usr/bin/pipewire -c filter-chain.conf" label="unconfined")
Apr 04 22:17:29 ubuntu kernel: snd_hda_intel 0000:03:00.6: no codecs initialized
Apr 04 22:18:23 ubuntu systemd[2408]: Listening on pipewire-pulse.socket - PipeWire PulseAudio.
Apr 04 22:18:23 ubuntu systemd[2408]: Listening on pipewire.socket - PipeWire Multimedia System Sockets.
Apr 04 22:18:23 ubuntu systemd[2408]: Started pipewire.service - PipeWire Multimedia Service.
Apr 04 22:18:23 ubuntu systemd[2408]: Started pipewire-pulse.service - PipeWire PulseAudio.
Apr 04 22:18:36 ubuntu systemd[1697]: Stopping pipewire-pulse.service - PipeWire PulseAudio...
Apr 04 22:18:36 ubuntu systemd[1697]: Stopped pipewire-pulse.service - PipeWire PulseAudio.
Apr 04 22:18:36 ubuntu wireplumber[1719]: wireplumber: disconnected from pipewire
Apr 04 22:18:36 ubuntu systemd[1697]: Stopping pipewire.service - PipeWire Multimedia Service...
Apr 04 22:18:36 ubuntu systemd[1697]: Stopped pipewire.service - PipeWire Multimedia Service.
Apr 04 22:18:36 ubuntu systemd[1697]: Closed pipewire-pulse.socket - PipeWire PulseAudio.
Apr 04 22:18:36 ubuntu systemd[1697]: Closed pipewire.socket - PipeWire Multimedia System Sockets.