<html> <head> <meta content="text/html; charset=windows-1252" http-equiv="Content-Type"> </head> <body bgcolor="#FFFFFF" text="#000000"> <div class="moz-cite-prefix">On 09/26/2014 12:13 AM, Raymond Yau wrote: </div> <blockquote cite="mid:CAN8cciadpO0M7rJLJ8bjnoH5RR65LfzZwEM9FRE+kWo+kZhTfw@mail.gmail.com" type="cite"> >> >> > >> > On a machine without fixed connecting audio devices like internal >> > microphone or internal speaker, and when there is no external audio >> > devices plugging in, the default source/sink is alsa_input/alsa_output >> > and there is no input devices/output devices listed in the gnome >> > sound-setting. <a moz-do-not-send="true" href="https://launchpadlibrarian.net/184055917/PulseList.txt">https://launchpadlibrarian.net/184055917/PulseList.txt</a> Seem line in is active port when all ports are not available Pulseaudio won't switch away from line in but gnome won't show line in since it is not plugged ports: analog-input-microphone-front: Front Microphone (priority 8500, latency offset 0 usec, available: no) properties: device.icon_name = "audio-input-microphone" analog-input-microphone-rear: Rear Microphone (priority 8200, latency offset 0 usec, available: no) properties: device.icon_name = "audio-input-microphone" analog-input-linein: Line In (priority 8100, latency offset 0 usec, available: no) properties: active port: <analog-input-linein> </blockquote> Yes, in this situation, the default-source->active_port->available=no, if you use this module and pass "only_from_unavailable=yes", when connect bluetooth headset, the default source will automatically switch to bluez-source. In this situation, if you plug something in the line-in jack, the default-source->active_port-available=yes, and if you pass "only_from_unavailable=yes", the default source will not switch. <blockquote cite="mid:CAN8cciadpO0M7rJLJ8bjnoH5RR65LfzZwEM9FRE+kWo+kZhTfw@mail.gmail.com" type="cite"> <a moz-do-not-send="true" href="https://launchpadlibrarian.net/184417469/alsa2.txt">https://launchpadlibrarian.net/184417469/alsa2.txt</a> <fieldset class="mimeAttachmentHeader"></fieldset> <pre wrap="">_______________________________________________ pulseaudio-discuss mailing list <a class="moz-txt-link-abbreviated" href="mailto:pulseaudio-discuss@lists.freedesktop.org">pulseaudio-discuss@lists.freedesktop.org</a> <a class="moz-txt-link-freetext" href="http://lists.freedesktop.org/mailman/listinfo/pulseaudio-discuss">http://lists.freedesktop.org/mailman/listinfo/pulseaudio-discuss</a> </pre> </blockquote> </body> </html>