I have a Lenovo thinkpad edge 13'' machine. I use arch of in on the past last month or so. Yesterday, I needed to use a microphone. After I plugged it in, I noticed that the sound level is very low. I open the gnome sound setting and learned I only have an analog output, and the digital output (HDMI connection) is not recognized. Under the input, I see only the machine built in microphone. I tried with alsa-mixer. It list both cards but only the machine built in microphone (under HDA Intel MID card) and not the microphone under the combo jack (ThinkPad Console Audio Control). Can I fix this?
Are you using a standalone microphone or a combined headset/microphone (iPhone/Android style)?
My Lenovo X1 Carbon has a combo jack as well. When I connect my headset (iPhone plugs is all I've tested), the internal microphone is automatically disabled and the headset mic enabled.
For google chat/hangout I have to configure the Microphone as the second HDA Intel PCH (in the dropdown menu).
Hope that helps,
It's a headset android style.
What is the drop-down menu you mentioned? Is it in google hangout?
The dropdown is in gmail -> Settings -> Chat -> Microphone.
I haven't tested any other apps, but I'm sure arecord could be used to test what microphone is actually being used.