Headset microphone doesn't work when connected in green jack

platyhelminth · n00b Joined: 26 Oct 2016 Posts: 15 Location: France

Hi,

In gentoo, my headset's microphone doesn't work when connected to the green jack (but headphones/speakers work). it works perfectly in ubuntu and windows (in other computers).
Also, in gentoo, when connected to the pink jack the headset's microphone works (but not the headphones/speakers).

I have pulseaudio and pavucontrol intalled. The pavucontrol says me in the "Input Devices" tab that when the headset is connected in the green jack then all ports are shown " (unplugged) " .
My (old) sound card is a Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 02) with a Realtek ALC888 chipset.

platyhelminth · n00b Joined: 26 Oct 2016 Posts: 15 Location: France

Ok, as I said this headset works easily in ubuntu and windows in other computers. So to check if it was distro-dependent or hardware-dependent I tested fedora in my gentoo computer: the headset didn't have the microphone working with fedora.
So I guess the soundcard " Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 02) " doesn't support headsets (with both headphones and microphone). The pink jack only supports microphone, the green jack only supports headphone/speakers.

I also tested fedora on my other computer with a sound card " Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03) " . Here the headset fully works in the green jack.
Nearly the same card but the (rev 03) works and not the (rev 02)
It seems to be a hardware problem (may be it is a pulseaudio problem but i don't want to try removing pulseaudio now and recompile all the packages without pulseaudio use flag, may be later. Or its related to ALSA).

NeddySeagoon · Posted: Fri Jun 23, 2017 7:53 pm Post subject:

platyhelminth,

Tell us more about your headset.

Typically, the green jack is front stereo out and the pink jack is front stereo in.
To make this work, analogue headsets have two jacks, green and pink.

Some strange headsets have a single 4 pole jack instead of two 3 pole jacks. If you have a matching strange system, typically a laptop, that's fine.

These 4 pole setups are not always auto detected and the sound card driver needs a module parameter and module load time.

What sound card do you have - it will be listed in lspci?
What codec do you have, it will be in the top left of alsamixer?

-- edit --

That sound card is snd-hda-intel.
We need the codec now.
_________________
Regards,

NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.

platyhelminth · n00b Joined: 26 Oct 2016 Posts: 15 Location: France

NeddySeagoon · Posted: Fri Jun 23, 2017 9:08 pm Post subject:

platyhelminth,

Time to play with loading snd-hda-intel with module parameters.

First, snd-hda-intel needs to be a module, rather than built in. You can pass parameters to builtins but its a reboot.
Check lsmod for snd_hda_intel.

Read /usr/src/linux/Documentation/sound/hd-audio/models.rst to discover values for the models parameter for your ALC888

The routine is

platyhelminth · n00b Joined: 26 Oct 2016 Posts: 15 Location: France

I have modularized snd-hda-intel (it was originaly built in). Rebooted and it works, at last the headphone not the microphone in the green jack.

HUM, /usr/src/linux/Documentation/sound/hd-audio/models.rst doesn't exist. And also:

NeddySeagoon · Posted: Sat Jun 24, 2017 8:12 am Post subject:

platyhelminth,

It looks like the kernel Documentation directory is being restructured.
I've noticed a few changes over the last few kernel releases. The oldest kernel I have to hand is 4.10.1 and that has the .rst file
_________________
Regards,

NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.