Kernel Bug Tracker – Bug 59861
Mic boost option is absent for VIA VT1708S codec.
Last modified: 2013-11-13 17:14:37 UTC
Created attachment 105161 [details]
In 3.9.5-030905-generic version - Rear (Front) Mic Boost Volume option is absent for VIA VT1708S codec.
3.8.0-19-generic - everything OK.
Could you try the patch below?
Created attachment 105181 [details]
It works. Thanks!
The patch was already merged to the upstream.