Audio Hints, T520? [restating the problem]

[Zaphod Beeblebrox]

On Mon, May 6, 2013 at 11:27 AM, Sean Bruno <sean_bruno at yahoo.com> wrote:


> Using a 4 position (combined headphone/mic) head set with the T520 and
> *no* device hints WORKS for recording and playback.
>
> Its the onboard microphone that is not working for me.  No device hints
> provided in this thread have solved the onboard mic issue.  Audio
> playback through the laptop speakers works just fine.


This would be a question for the hardware hacks among us ... is this one of
the onboard microphones that isn't?  By that I mean ... one where it uses
the existing builtin speakers and some fancy DSP work to construct a
microphone?