<p><br>
>><br>
>> ><br>
>> > On a machine without fixed connecting audio devices like internal<br>
>> > microphone or internal speaker, and when there is no external audio<br>
>> > devices plugging in, the default source/sink is alsa_input/alsa_output<br>
>> > and there is no input devices/output devices listed in the gnome<br>
>> > sound-setting.</p>
<p><a href="https://launchpadlibrarian.net/184055917/PulseList.txt">https://launchpadlibrarian.net/184055917/PulseList.txt</a></p>
<p>Seem line in is active port when all ports are not available<br>
Pulseaudio won't switch away from line in but gnome won't show line in since it is not plugged</p>
<p>ports:<br>
analog-input-microphone-front: Front Microphone (priority 8500, latency offset 0 usec, available: no)<br>
properties:<br>
device.icon_name = "audio-input-microphone"<br>
analog-input-microphone-rear: Rear Microphone (priority 8200, latency offset 0 usec, available: no)<br>
properties:<br>
device.icon_name = "audio-input-microphone"<br>
analog-input-linein: Line In (priority 8100, latency offset 0 usec, available: no)<br>
properties:</p>
<p>active port: <analog-input-linein></p>
<p><a href="https://launchpadlibrarian.net/184417469/alsa2.txt">https://launchpadlibrarian.net/184417469/alsa2.txt</a></p>