Comment 6 for bug 454789

There is a long thread of VaioTT users discussing how it works with Ubuntu,
and the internal microphone problem is clearly a non-resolved issue. Maybe
the information on that thread can help:

http://ubuntuforums.org/showthread.php?t=1111753

I will mark this as confirmed, since there many VaioTT users report the same
problem and nobody found a fix.