[pulseaudio-discuss] Input sound random detection.

[Tanu Kaskinen]

On Mon, 2016-08-08 at 10:48 -0300, Gustavo Duarte wrote:
> Hi,
> 
> We are having problem with call conference apps like Skype and Hangout. 
> The issue is that, sometime the microphone is detected and not.
> 
> I'll try to explain how it is happens.
> 
> 1) Boot the laptop.
> 2) Open Skype, and call to "Echo / Sound Test Service"
> 3) Record a message, and nothing is recorded, i can see how Skype 
> increase the input volume level to 100% trying to detect input.
> 4) Go to sound settings, select input tabs, see the input volume is on 
> 100%, and the indicator bar is like disable, isn't detecting sound input.
> 5) Change the volume to 20% and the indication bar start to showing 
> input signal detection.
> 6) Open Skype, and call "Echo / Sound Test Service".
> 7) Record a message, and it is recorder, I can heard the message.
> 
> Is like, the input start working after i change the volumen input 
> setings levels.
> 
> I'm not sure, if the problem is on PulseAudio or in AlsaDrivers.
> 
> I attach the pulseaudio logs, (enabled following this instructions: 
> https://wiki.ubuntu.com/PulseAudio/Log)
> 
> The logs was recorder during the test described above, steps 1 to 7.
> 
> 
> 
> The test environment is:
> ===============
> 
> Laptop brand Positivo BGH;
> 
> Sist. Op: Ubuntu 14.04
> 
> Sound card info:
> 
> alsa.card_name = "HDA Intel PCH"
> alsa.driver_name = "snd_hda_intel"
> device.vendor.name = "Intel Croporation"
> device.product.id = "0f04"
> device.product.name = "ValleyView High Definition Audio Controll"
> 
> Somebody can tell me, based on logs if the problem is on PulseAudio or 
> on AlsaDriver ?
> Do you need another information or logs ?

If you could send the output from "amixer -c0" and "pactl list" both
when it's not working and when it's working, that might be useful.

-- 
Tanu