Realtek ALC272. Empathy kills microphone

[uaaquarius]

How many audio jacks on the motherboard?

There are 2 analogue audio jacks: for microphone and for speakers.
There is aslo HDMI port from ATI 5470.

Another interesting point is that HD-Audio-Models.txt does not lists any Acer model for ALC272, so I tried "auto" but with no success.

[lidex]

Try 3stack-dig:

options snd-hda-intel model=3stack-dig

Reboot.

Also 3stack-6ch, 3stack-6ch-dig

[uaaquarius]

Try 3stack-dig:

options snd-hda-intel model=3stack-dig

Reboot.

Also 3stack-6ch, 3stack-6ch-dig

Thanks for quick reply, lidex!

I've tried 3stack-dig, 3stack-6ch and 3stack-6ch-dig. Each provided the choice if input source: Mic and Front Mic. I've tried both of them for each model. But the problem is still present:

1. There is a "chucklink" during audio call, so the other person can hardly understand you;
2. Videocall kills the microphone.

Ubuntu developers confirmed this bug.

[lidex]

I'm thinking it may have something to do with the fact that snd-hda-intel is being used by both devices. Are you using hdmi and if not can it be disabled? What profile are you using in 'Sound Preferences'?

[uaaquarius]

I'm thinking it may have something to do with the fact that snd-hda-intel is being used by both devices. Are you using hdmi and if not can it be disabled? What profile are you using in 'Sound Preferences'?

I don't use HDMI and I've tried disabling it. I've even tried to remove proprietary ATI driver, but with no success

Here are screenshots of my sound configuration:

[uaaquarius]

I've managed to solve the problem with following workaround:

1. replace Empathy with Skype
2. delete pulseaudio (this removes some things like sound indicator)