https://bugzilla.novell.com/show_bug.cgi?id=873704
https://bugzilla.novell.com/show_bug.cgi?id=873704#c3
Takashi Iwai changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
--- Comment #3 from Takashi Iwai 2014-04-15 13:49:54 UTC ---
I guess your machine has a TRRS headset jack, thus the headphone jack might be
connected to the mic internally. So, it's no wonder that a mic gets some
signal and sent to analog loopback when using a headphone jack.
Though, in the codec design level, this shouldn't happen; the mixer widget has
a mute for each input source and it's still muted in your case. Maybe Sony
implemented some vendor-specific way to control the headset mic,
noise-canceling or such a thing. We cannot know it, unfortunately. It's a
pretty vendor-specific internal, after all.
That said, if setting "Mic" volume to 0 fixes the issue, it's the valid
solution :)
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