[OS X] (USB) sink/source names are meaningless and vary across pulseaudio restarts
Submitted by René J.V. Bertin
Assigned to pul..@..op.org
Description
Created attachment 113100 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.
Attachment 113100, "pacmd list-sinks > pacmd-list-sinks-1.log":
pacmd-list-sinks-1.log