[alsa-devel] Constant noise on HDA ALC275

Takashi Iwai tiwai at suse.de
Mon Oct 8 18:12:28 CEST 2012

At Mon, 08 Oct 2012 18:09:10 +0200,
Julien Danjou wrote:
> On Mon, Oct 08 2012, Takashi Iwai wrote:
> > No, not about noise but the system beep sound.
> > Such like
> > 	% echo -en "\a"
> > on Linux console.
> Oh that. Yes, the volume I hear when echoing a '\a' change correctly
> when I change the beep volume in alsamixer.

Thanks, it's good to know.  So the current implementation of beep
control itself is OK.  The rest is to stop the mixer amp mute via Beep

> (On a side note, I don't know how precise it should be, but setting the
> beep volume to 0 (but still unmuted) still does an audible beep.)

It's normal behavior on many codecs.  The lowest volume level doesn't
mean the mute state.


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