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Description of problem: When plugging the headphones into headphones port, the volume of the headphones becomes either 74% or 0% (muted). The same happens for the speakers upon unplugging the headphones. Volume levels are neither saved nor restored. It seems that Pipewire is in conflict with Pulseaudio when no pipewire-pulse is installed, however this bug happens even when pulseaudio process is not running (stopped with systemctl --user stop pulseaudio.service pulseaudio.socket). Version-Release number of selected component (if applicable): pipewire.x86_64 0.3.32-1.fc34 pipewire-alsa.x86_64 0.3.32-1.fc34 pipewire-jack-audio-connection-kit.x86_64 0.3.32-1.fc34 pipewire-libs.x86_64 0.3.32-1.fc34 pulseaudio.x86_64 14.2-3.fc34 How reproducible: All the time Steps to Reproduce: 1. Have Pulseaudio along with Pipewire (pipewire+pulseaudio, not pipewire-pulse, default configuration when upgrading Fedora 33→34) 2. Plug in the headphones to the jack 3. Disconnect the headphones Actual results: The volume of headphones is either 74% or muted upon connection, regardless of the previous volume levels. The volume of speakers is either 74% or muted upon headphones disconnection, regardless of the previous volume levels. Expected results: The volume and muted/unmuted state is saved and restored properly. Additional info: I've tried to disable volume restoring modules in pulseaudio, that didn't help. Even stopping pulseaudio process completely, letting pipewire handle everything, triggers this bug. Everything is fine with pipewire-pulse (no real pulseaudio).
Created attachment 1809913 [details] PIPEWIRE_DEBUG=3 and PIPEWIRE_DEBUG=4 logs This is pipewire log running with PIPEWIRE_DEBUG=3, PIPEWIRE_DEBUG=4 and no pulseaudio process running. 1. Pipewire is started 2. Volume is decreased from 75% to 30-40% using alsamixer -c0 3. Headphones are plugged in 4. Volume is decreased from 75% to 30-40% using alsamixer -c0 5. Headphones are unplugged 6. Volume is decreased from 75% to 30-40% using alsamixer -c0
Upstream: https://gitlab.freedesktop.org/pipewire/pipewire/-/issues/1475
Pipewire developer says that installing Pipewire with plugins along with Pulseaudio is not supported, however this is exactly what happens on Fedora 33-34 upgrade. >If you install PulseAudio along with PipeWire you need to disable all audio functionality in PipeWire. Usually this means uninstalling the alsa plugin, pipewire-pulse and jack support. This will remove an with-* files from the session manager config directory and disable all audio. >With that in place, PipeWire doesn't do anything with audio and it can't be a pipewire bug. >I suspect some audio parts are still routed to PipeWire, causing both pulseaudio and PipeWire to mess with the volume. This is not supported.