[pulseaudio-discuss] Pulseaudio Merges Speakers and Frontjack

[Reece Dunn]

On 26 October 2011 21:23, Philipp Gassmann <phiphi at phiphi.ch> wrote:
> Hello
>
> I can no longer mute my builtin Speakers of my notebook separately from
> the headphone-jacks (I've two of those)
> In ubuntu 11.04 I could manually switch between Analog Output and Analog
> Speakers in the Audio-Settings, now there's only Analog Speakers
> In Alsamixer I have Master, Speaker, PCM, Front and some switches etc. I
> can adjust them, but when I change the Volume via Indicator or
> shortcuts, they are reset to 100, Master is leveled.
> It would be no problem if connected jacks would be recognized and
> speakers muted automatically, but that doesn't work either.
> Switching between Analog Speakers and Analog Output was also some kind
> of workaround, but It worked for me.
> I asked on IRC if anyone could help me adjusting the configuration.
> *mkbosmans told me to write a mail to the list.
> *Here's some extracts:
>
> *
> phiphi:* hello can anyone assist me in configuring my (pulse)audio on
> ubuntu, so that I can mute speakers?22:06:09
>
> *phiphi:* In ubuntu 11.04 I could manually switch between Analog Audio
> Output and Analog Speakers in the Audio-Settings22:07:06
>
> *mkbosmans:* phiphi, and now there's no choice in ports anymore?22:08:34
>
> *phiphi:* I still can mute Speaker via alsamixer, but the
> volume-indicator or whatever is behind it (guess pulseaudio) has bound
> the channel Speaker and Master together. When I change volume via
> indicator it resets the Speaker channel.22:08:59
>
> *phiphi:* No, now there's only Analog Speakers22:09:29
>
>
> *mkbosmans:* the problem lies in line 316: Removing path 'analog-output'
> as it is a subset of 'analog-output-speaker'22:26:23
>
> *mkbosmans:* I had problems with subset path removal too22:27:06
>
> *mkbosmans:* Can you send a problem description to the mailing list,
> with a link to this output? Please explain clearly (e.g. in case of
> functionality you are missing of the alsa-mixer control elements) why in
> your case the removal of the analog-output path is not desired22:28:17
>
> *mkbosmans:* phiphi, for reference see my mail to the list with the
> subject [PATCH] alsa-mixer: Take channel mask of volume element into
> account when finding a subset path
>
>
>
> killall pulseaudio ; LANG=C pulseaudio -vvvv > /tmp/pulseaudio_vvvv 2>&1
> Output: http://pastebin.com/kvcYSth8 <http://pastebin.com/kvcYSth8>
>
> Output and result differ between different tries. Sometimes I have no
> longer an "Internal Analog Device" and the problem-line does not appear.
> like in the following
> http://pastebin.com/vXwN3heW
>
> My sound-hardware is: HDA Intel, IDT 92HD75B3X5
>
> I'm glad If I can help improve pulseaudio (to work on my hardware ;-)

For reference, there are also several bugs on Ubuntu's Launchpad
relating to this:
   https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/871633
(HP Pavilion dv6, IDT 92HD75B3)
   https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/870360
(HP Pavilion dv7, IDT 92HD75B3X5)

For my system (the dv7), I get the same behaviour as described above.

According to the bios info, the jacks on my system get reported as:

Node 0x0b: [Jack] Mic at Ext Front
Node 0x0f: [Jack] Line Out at Ext Front
Node 0x1e: [Jack] SPDIF Out at Ext Front

With alsamixer:
   Speaker -- effects the internal built-in speaker volume
   Front -- effects the volume of the headphone jacks
   Master -- effects both Speaker and Front volume

Using hda-jack-sense-test:

Pin 0x0b (Black Mic): present = left jack/connector on the front (microphone)
Pin 0x0f (Green Line Out): present = middle *and* right jack/connector
on the front (headphones)

- Reece