Bug 92679

Summary:	Pulseaudio shows Line Out (unplugged) when headphones are plugged in.
Product:	PulseAudio	Reporter:	Chan Ju Ping <email>
Component:	pavucontrol	Assignee:	pulseaudio-bugs
Status:	RESOLVED MOVED	QA Contact:	pulseaudio-bugs
Severity:	minor
Priority:	medium	CC:	lennart
Version:	unspecified
Hardware:	x86-64 (AMD64)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:

Description Chan Ju Ping 2015-10-26 15:42:42 UTC

I am filing this bug upstream as requested from https://bugzilla.suse.com/show_bug.cgi?id=950204

My desktop has headphone and microphone jacks on the side panel, and an array of audio jacks on the back panel. In this case, I have two audio out cables plugged into them, one from the back panel (called Line Out in pavucontrol) and one from the side panel (called Headphones in pavucontrol).

To enable toggling in between the audio sources, I disabled auto-mute in alsamixer within the terminal.

This means I am able to select whether to use my speaker or my headphones as the primary audio output.

However, when the side panel jack is used, pavucontrol shows "Line Out (unplugged)" and "Headphones (plugged in)" despite both devices being plugged in at the same time. The strange thing is, I am still able to toggle in between the two different audio outputs without issue.

Comment 1 Raymond 2015-10-27 00:38:07 UTC

pulseaudio based on the value of the headphone jack kctl to mute the liner out, if your headphone and. lineout are always plugged 

you need to disable jack detection using hint

jack_detect=false


pulseaudio does not support. multistreaming 

http://www.intel.com/support/motherboards/desktop/sb/CS-034206.htm

Comment 2 Raymond 2015-10-27 00:50:51 UTC

http://cgit.freedesktop.org/pulseaudio/pulseaudio/commit/src/modules/alsa/mixer/paths/analog-output-lineout.conf?id=5598923b8e64de873a417b512d709c5674f3a96d

http://cgit.freedesktop.org/pulseaudio/pulseaudio/commit/src/modules/alsa/mixer/paths/analog-output-lineout.conf?id=ecf3ab2b5788c85c237eeb6429bd1d525b9ac0cc

+[Element Headphone]
+switch = mute
+volume = zero
+




http://cgit.freedesktop.org/pulseaudio/pulseaudio/commit/src/modules/alsa/mixer/paths/analog-output-headphones.conf?id=31575f7766d6ff39665b64a3a04412eff1c39957


+[Element Front]
+switch = off
+volume = off


pulseaudio mute the other path when hp is plugged and unplugged

Comment 3 Chan Ju Ping 2015-10-28 11:05:49 UTC

Thanks for responding. Where exactly do I toggle the option jack_detect=false
?

Comment 4 Raymond 2015-10-28 14:03:53 UTC

https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/tree/Documentation/sound/alsa/HD-Audio.txt

use early patching to specify hint

Comment 5 GitLab Migration User 2018-07-30 09:31:07 UTC

-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/pulseaudio/pavucontrol/issues/43.

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