PipeWire: The Linux audio/video bus [LWN.net]

PipeWire: The Linux audio/video bus

Posted Mar 10, 2021 6:25 UTC (Wed) by ghane (guest, #1805)
Parent article: PipeWire: The Linux audio/video bus

Hi,

I am running ubuntu/hirsute on my laptop (which will become 21.04), and I see

pipewire/hirsute,now 0.3.22-2 amd64 [installed,automatic]

How can I check if I am using it? I see pulseaudio packages installed as well, FWIW.

--
Sanjeev

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PipeWire: The Linux audio/video bus

Posted Mar 14, 2021 13:24 UTC (Sun) by Hi-Angel (guest, #110915) [Link]

I imagine you will not have a pulseaudio process running, i.e. executing


 λ ps aux | grep pulseaudio
constan+     610  1.4  0.1 3120980 14064 ?       Ssl  мар10  80:22 /usr/bin/pulseaudio --daemonize=no --log-target=journal

will not give you a pulseaudio process, similar to the output I here. Also, usually pulseaudio is enabled as a "user" systemd service. I imagine, it might be different depending on a distro, but at least on Archlinux I can check on it as:


 λ systemctl status --user pulseaudio
● pulseaudio.service - Sound Service
     Loaded: loaded (/usr/lib/systemd/user/pulseaudio.service; enabled; vendor preset: enabled)
     Active: active (running) since Wed 2021-03-10 21:45:01 MSK; 3 days ago
TriggeredBy: ● pulseaudio.socket
   Main PID: 610 (pulseaudio)
      Tasks: 7 (limit: 9392)
     Memory: 14.4M
        CPU: 1h 20min 22.968s
     CGroup: /user.slice/user-1000.slice/user@1000.service/app.slice/pulseaudio.service
             ├─610 /usr/bin/pulseaudio --daemonize=no --log-target=journal
             └─704 /usr/lib/pulse/gsettings-helper

мар 10 21:44:51 constantine-N61Ja systemd[602]: Starting Sound Service...
мар 10 21:45:01 constantine-N61Ja systemd[602]: Started Sound Service.
мар 10 21:45:02 constantine-N61Ja pulseaudio[610]: Found duplicated D-Bus path for adapter /org/bluez/hci0
мар 10 21:45:02 constantine-N61Ja pulseaudio[610]: Found duplicated D-Bus path for device /org/bluez/hci0/dev_78_A7_EB_7A_3D_E2
мар 10 21:45:02 constantine-N61Ja pulseaudio[610]: Found duplicated D-Bus path for device /org/bluez/hci0/dev_41_42_51_CD_29_12

PipeWire: The Linux audio/video bus

Posted Mar 17, 2021 17:08 UTC (Wed) by darwi (subscriber, #131202) [Link] (1 responses)

> How can I check if I am using it?

In your Ubuntu 21.04 setup, PipeWire is only used for camera multiplexing and Wayland screen sharing. It is not used for routing audio. This is why you still have the PulseAudio package installed, and enabled, by default.

PipeWire: The Linux audio/video bus

Posted Mar 18, 2021 12:13 UTC (Thu) by ghane (guest, #1805) [Link]

Thank you, Hi-Angel, darwi.

I can confirm that both pulseaudio and pipewire are running, as systemd user services.

Thanks