Comment 12 for bug 1228689

> /etc/asound.conf

Thanks for the link. Edited to the default configuration. I will be repeating the diagnostic steps requested in comment #1 and post the updated output.

Little apparent change so far. Audio output still works as expected. Microphone still not working, neither the internal one nor the one in the headset. Instead of continuous high pitch sound, the headset emits a low frequency pulsating sound.

> do your Sony support headset (headphone with Mic) instead of headphone ?

Yes.

I am trying to make sense of the log excerpt in comment #11.

What is a "Phantom Jack"?

I would be tempted to guess that the log means:
- speaker found
- no headphone found
- two microphones found, one on the Mic Jack (logged twice) and one on the Internal Mic Phantom Jack

AFAIK the SONY has two microphones onboard. Is it possible that one of them is wired to the Mic Jack and the other one to the Internal Mic Phantom Jack? And that the headset would be a third microphone?

When I run pavucontrol, I see two mics: Microphone and Internal Microphone. Connecting the headset does not add a third microphone.

I have a bluetooth headset (BTH) too. I have kept it off this report to focus on the basic microphone. I have spurious problems with the BTH too. But maybe this information about the BTH can help diagnose my problems.

~/.asoundrc:

pcm.btheadset {
        type bluetooth
        device XX:XX:XX:XX:XX:XX
        profile “auto”
}

When I connect the BTH, it shows up in pavucontrol, unlike the wired headset. However it is spurious:

Start from all devices off:
* Boot laptop
* Turn BTH on and it shows in pavucontrol
* Turn BTH off and it disappears in pavucontrol, as expected
* Turn BTH on again and it does not show in pavucontrol, against expectation

Start again from all devices off:
* Turn BTH on
* Boot laptop
* BTH does not show in pavucontrol, against expectation
* Turn BTH off and on again, tt does not show in pavucontrol, against expectation

Also, when the BTH is listed in pavucontrol, it does not work. Skype is muted when it would be expected to play and record to/from the BTH.

On the bluetooth end, I cannot connect to the audio sink (Stream setup failed). I recall that I was able to play music using VLC only once, after which I lost the functionality and did not care too much because I was not really using it.

I hope this does not make my report more confusing.