[pulseaudio-tickets] [Bug 88941] New: [OS X] (USB) sink/source names are meaningless and vary across pulseaudio restarts

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=88941

            Bug ID: 88941
           Summary: [OS X] (USB) sink/source names are meaningless and
                    vary across pulseaudio restarts
           Product: PulseAudio
           Version: unspecified
          Hardware: Other
                OS: Mac OS X (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: misc
          Assignee: pulseaudio-bugs at lists.freedesktop.org
          Reporter: rjvbertin at gmail.com
        QA Contact: pulseaudio-bugs at lists.freedesktop.org
                CC: lennart at poettering.net

Created attachment 113100
  --> https://bugs.freedesktop.org/attachment.cgi?id=113100&action=edit
pacmd list-sinks > pacmd-list-sinks-1.log

On OS X, pulseaudio attributes human-unreadable names to the sinks and sources
it detects, and in addition to that, they vary across restarts for USB sound
devices. They may also vary for other external sound devices (FireWire), but I
don't have any way to test that. 

The attachments highlight the issue: they are the output of `pacmd list-sinks`
for 2 consecutive runs of `pulseaudio -C`:

> pulseaudio -C
> pacmd list-sinks > pacmd-list-sinks-1.log
> pulseaudio -C
> pacmd list-sinks > pacmd-list-sinks-2.log
> pacmd list-sources > pacmd-list-sources-2.log
> pulseaudio -C
> pacmd list-sinks > pacmd-list-sinks-3.log
> pacmd list-sources > pacmd-list-sources-3.log

The implications are clear: it's impossible to set a default sink and/or source
persistently, other than to the internal devices.

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