Mailinglist Archive: opensuse-bugs (2150 mails)

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[Bug 873704] Audio: Using headset jack causes short-circuits and creaky noise

Takashi Iwai <tiwai@xxxxxxxx> changed:

What |Removed |Added
Resolution| |FIXED

--- Comment #3 from Takashi Iwai <tiwai@xxxxxxxx> 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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