[F42] Pipewire 1.4.6-1: HDMI sink (often) lost after unsuspend

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1

Please let me know if I can add any logs / systemd unit tweaks to make this more obvious / debuggable.

Problem

On some recent upgrade, I saw my laptop consistently (but not always!) losing the HDMI audio sink after unsuspending. I think that this was correlated with me upgrading to the most recent F42 build of Pipewire, but have no proof.

Looking at journalctl, I don’t see any relevant logs from any pertinent systemd units.

This doesn’t happen every time, but doesn’t look specific to my desktop environment.

  • It happens consistently (almost every time) in niri.
  • I’ve reproduced it first-try in sway.
  • I have not reproduced it (yet) in GNOME. (I logged in from cold boot, closed the lid, counted to ten, and reopened it.)

I could try harder to repro everywhere, but I need to set aside the time to do so.

Workarounds

  • Physically unplug and re-plug the HDMI output
  • Send the equivalent commands to the current Wayland compositor
  • systemctl --user restart wireplumber (I don’t like doing this one)

Environment

$ rpm -q pipewire wireplumber
pipewire-1.4.6-1.fc42.x86_64
wireplumber-0.5.8-1.fc42.x86_64
$ inxi -A
Audio:
  Device-1: Advanced Micro Devices [AMD/ATI] Raven/Raven2/Fenghuang HDMI/DP
    Audio driver: snd_hda_intel
  Device-2: Advanced Micro Devices [AMD] Audio Coprocessor
    driver: snd_pci_acp3x
  Device-3: Advanced Micro Devices [AMD] Family 17h/19h/1ah HD Audio
    driver: snd_hda_intel
  API: ALSA v: k6.15.5-200.fc42.x86_64 status: kernel-api
  Server-1: PipeWire v: 1.4.6 status: active
2

This was diagnosed as an amdgpu regression. Fix will soon be available.

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