Re: [PATCH v3] Run PipeWire and WirePlumber in the VMs

[Demi Marie Obenour <demiobenour@gmail.com>]

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On 7/14/25 10:54, Alyssa Ross wrote:
> Demi Marie Obenour <demiobenour@gmail.com> writes:
> 
>> WirePlumber is completely overkill as a session manager here, and
>> ideally a trivial session manager would be used instead.  I did build a
>> Spectrum OS image and found that PipeWire and WirePlumber both
>> successfully started.  PipeWire is configured to listen on the
>> PulseAudio socket, so PulseAudio compatibility works.  This does inject
>> a large number of completely unnecessary files into the VM, notably for
>> libcamera and Bluetooth support.
> 
> Yeah, I saw this in the log:
> 
> N 14:27:54.810067 wp-internal-comp-l ../lib/wp/private/internal-comp-loader.c:588:on_component_loaded: <WpCore:0x28d95d30> optional component 'support.logind [module: libwireplumber-module-logind]' failed to load: failed to start systemd logind monitor: -2 (No such file or directory)
> N 14:27:54.811299 wp-internal-comp-l ../lib/wp/private/internal-comp-loader.c:640:wp_component_array_load_task_execute_step: <WpCore:0x28d95d30> skipping component 'monitor.bluez.seat-monitoring [virtual]' because some of its dependencies were not loaded
> E 14:27:54.851210           spa.dbus ../spa/plugins/support/dbus.c:333:impl_connection_get: Failed to connect to system bus: Failed to connect to socket /run/dbus/system_bus_socket: No such file or directory
> E 14:27:54.852143         spa.bluez5 ../spa/plugins/bluez5/bluez5-dbus.c:6632:impl_init: failed to get dbus connection
> N 14:27:54.855904          wp-device ../lib/wp/device.c:710:wp_spa_device_new_from_spa_factory: SPA handle 'api.bluez5.enum.dbus' could not be loaded; is it installed?
> N 14:27:54.856657         s-monitors bluez.lua:411:createMonitor: PipeWire's BlueZ SPA plugin is missing or broken. Bluetooth devices will not be supported.
> E 14:27:54.859091    spa.bluez5.midi ../spa/plugins/bluez5/midi-enum.c:805:impl_init: Creating GDBus connection failed: Could not connect: No such file or directory
> N 14:27:54.859810          wp-device ../lib/wp/device.c:710:wp_spa_device_new_from_spa_factory: SPA handle 'api.bluez5.midi.enum' could not be loaded; is it installed?
> N 14:27:54.860524         s-monitors bluez-midi.lua:95:createMonitor: PipeWire's BlueZ MIDI SPA missing or broken. Bluetooth not supported.
> E 14:27:54.861346 spa.bluez5.midi.no ../spa/plugins/bluez5/midi-node.c:1989:impl_init: failed to get dbus connection: Could not connect: No such file or directory
> E 14:27:54.862435        pw.resource ../src/pipewire/resource.c:255:pw_resource_errorf_id: can't create node: Input/output error
> W 14:27:54.863275            wp-node ../lib/wp/node.c:913:wp_impl_node_new_from_pw_factory: failed to create node from factory 'spa-node-factory'
> N 14:27:54.863965         s-monitors bluez-midi.lua:130:createServers: Failed to create BLE MIDI server.
> [0:00:01.314658075] [123]  INFO IPAManager ipa_manager.cpp:137 libcamera is not installed. Adding '/nix/store/src/ipa' to the IPA search path
> [0:00:01.321611889] [123]  INFO Camera camera_manager.cpp:326 libcamera v0.5.0
> 
> Can we set something in a config file or something to disable this extra
> stuff?
I can disable the Bluetooth and libcamera SPA plugins,
but it would be better to build PipeWire and WirePlumber
without support for various stuff that Spectrum VMs will
never need.  Is this feasible?
-- 
Sincerely,
Demi Marie Obenour (she/her/hers)

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