Dell Latitude E6420 in-built microphone not working

Posted by user38845 on Ask Ubuntu See other posts from Ask Ubuntu or by user38845
Published on 2012-06-17T08:14:04Z Indexed on 2012/06/17 9:22 UTC
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Filed under:

12.04

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sound

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64-bit

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microphone

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hda-intel

I'm running with Ubuntu 12.04 64bit on Dell Latitude E6420. The inbuilt microphone is not working, and is not listed on the sound settings dialog.

According to lspci, the device is: 00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04)

I've also looked at alsamixer, and can see a "mic" and "dock mic" but fiddling with these and increasing to max amplification doesn't appear to change anything.

Note: I've raised a certification question on the same topic here: https://answers.launchpad.net/ubuntu-certification/+question/200678

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