>> >> >> >> > >> >> > 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. >> >> https://launchpadlibrarian.net/184055917/PulseList.txt >> >> 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> > > 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. >> >> https://launchpadlibrarian.net/184417469/alsa2.txt >> >> >I do not have the hda-jack-sense-test command. >I was not aware that I was overriding the pcm.default. Is it worth changing this to see if the bug goes away? How would I do that? Seem upgrade does not remove previous conf System wide config file (/etc/asound.conf) ###################### /etc/asound.conf ################################## pcm.!default { type plug slave.pcm "asymed" } pcm.asymed { type asym playback.pcm "swmixer" capture.pcm "mixin" } pcm.dsp0 { type plug slave.pcm "asymed" } pcm.swmixer { type dmix ipc_key 1234 slowptr yes slave { pcm "hw:0,0" period_time 0 period_size 1024 buffer_size 4096 rate 48000 } } ctl.dmixer { type hw card 0 } pcm.mixin { type dsnoop ipc_key 5978293 # must be unique for all dmix plugins!!!! ipc_key_add_uid yes slave { pcm "hw:0,0" channels 2 period_size 1024 buffer_size 4096 rate 48000 periods 0 period_time 0 } bindings { 0 0 0 1 } } > Do I need to build my own version of the kernel to disable jack detection? https://launchpad.net/~diwic/+archive/ubuntu/hda Install snd-hda-tools and run hda-jack-sense-test to find out whether rear Mic Jack , line in and front Mic report correct Jack state when you plugged and unplugged If it work in windows, you may need to file an upstream bug report If rear Mic Jack cannot report correct Jack state, The workaround is disable Jack detection of rear Mic jack by hda-jack-retask -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/pulseaudio-discuss/attachments/20140926/fd55a807/attachment.html>