>>>>>> But I still wonder why PulseAudio cares the headphone jack state even >>>>>> though this has only one output at all? >>>>> >>>>> >>>>> When seeing the system as a whole, there can be other outputs on other >>>>> cards - HDMI, USB etc. If somebody e g plugs a USB headset in it will be >>>>> simpler for the user if PulseAudio does not also show the unplugged 3.5 >>>>> mm jack
phantom port of internal speaker or internal Mic is ok but how about those jack spdif, CD , Aux which does not have jack detect circuit Is it feasible for driver implement a read/ write kcontrol for those port and allow the user to change the state of those port by using special application (e.g. qashctl) ? > > That said, it's not super difficult to comment out a few lines in > /usr/share/pulseaudio/alsa-mixer/paths/*.conf, and also, most mixer UIs (e g pavucontrol) still allows you to route audio to an unavailable port. For ad1988 which still not support auto mute nor hda jack detect. The user still able to use the card in gnome but not in unity. https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/995169 And ca0132 which does not implement auto mute ? https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1043621 And the other ad198x which support auto mute but not implement hda jack detect https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1051494 The other cases are those on-board ac97 controller (e.g. Intel8x0, atiixp,...) with ac97 codecs which have the headphone playback volume control. What is the usage of those "Headphone Jack Sense" control of AC97 codecs ? Some of them seem have inverted control https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1033996 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1033996 Title: [IBM 818946G, AD1981B (AC97), playback] No sound at all Status in “alsa-driver” package in Ubuntu: New Bug description: The problem occurred after upgrading. Tried to unmute all without any effect. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: alsa-base 1.0.25+dfsg-0ubuntu1 ProcVersionSignature: Ubuntu 3.2.0-29.46-generic 3.2.24 Uname: Linux 3.2.0-29-generic i686 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu12 Architecture: i386 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: omar 2028 F.... pulseaudio /dev/snd/pcmC0D4p: omar 2028 F...m pulseaudio Card0.Amixer.info: Card hw:0 'ICH5'/'Intel ICH5 with AD1981B at irq 17' Mixer name : 'Analog Devices AD1981B' Components : 'AC97a:41445374' Controls : 34 Simple ctrls : 23 CheckboxSubmission: 1bec2ee068fcfe505340af6b6ec41adb CheckboxSystem: 4cab0702789bad4babbf60ef954d08e6 Date: Tue Aug 7 15:34:13 2012 InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5) PackageArchitecture: all ProcEnviron: PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:ICH5 failed Symptom_Card: Built-in Audio - Intel ICH5 Symptom_DevicesInUse: 2028 2028 omar F.... pulseaudio /dev/snd/pcmC0D4p: omar F...m pulseaudio Symptom_Type: No sound at all Title: [ICH4 - Intel ICH5, playback] No sound at all UpgradeStatus: Upgraded to precise on 2012-04-27 (101 days ago) dmi.bios.date: 09/16/2004 dmi.bios.vendor: IBM dmi.bios.version: 2AKT46AUS dmi.board.name: IBM dmi.board.vendor: IBM dmi.chassis.asset.tag: ������������������������� dmi.chassis.type: 6 dmi.chassis.vendor: IBM dmi.modalias: dmi:bvnIBM:bvr2AKT46AUS:bd09/16/2004:svnIBM:pn818946G:pvr:rvnIBM:rnIBM:rvr:cvnIBM:ct6:cvr: dmi.product.name: 818946G dmi.sys.vendor: IBM To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1033996/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
