[pulseaudio-tickets] [Bug 98879] New: Fallback device changes and makes xfce panel volume control stop working

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98879

            Bug ID: 98879
           Summary: Fallback device changes and makes xfce panel volume
                    control stop working
           Product: PulseAudio
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: core
          Assignee: pulseaudio-bugs at lists.freedesktop.org
          Reporter: trondsg+bugzilla+freedesktop at gmail.com
        QA Contact: pulseaudio-bugs at lists.freedesktop.org
                CC: lennart at poettering.net

The device routing behaviour of PulseAudio is very user-unfriendly. Here is a
particular annoyance that I can't find any good reason for:

Insert USB audio device (Alesis Core 1). Analog audio is still set as fallback
device, so that the xfce panel volume control (in the indicator applet) doesn't
work (because sound comes out of Core 1). This is annoying, but it's not
necessarily clear cut how it should work.

Go into pa volume control and DESELECT Analog audio as fallback device by
clicking on the green button next to it. Now you have no fallback device.

Select Core 1 as fallback device by clickin on the green button next to it. The
volume control now affects Core 1.

(Because USB audio keeps malfunctioning, the Core 1 needs to be plugged in and
out a lot.) Pull the Core 1 out using the USB cable. Plug it back in. What's
the fallback device now? Analog output! This makes no sense. It should be Core
1. That's what I selected.

I'm using the latest version of PulseAudio 4.0 available on Ubuntu Studio
14.04.

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