From: Massimo Del Fedele <max@veneto.com>
To: alsa-devel@alsa-project.org
Subject: Re: Fix for Asus G75 notebook subwoofer
Date: Wed, 07 Nov 2012 18:02:20 +0100 [thread overview]
Message-ID: <509A941C.8060305@veneto.com> (raw)
In-Reply-To: <s5hr4o55ryl.wl%tiwai@suse.de>
Il 07/11/2012 16:54, Takashi Iwai ha scritto:
>
> It's OK, just missing the stereo capability check in the mixer code,
> but almost harmless. Which channel (left or right) of "surround"
> mixer actually controls the volume of subwoofer on your machine?
Both, as the volume control is at DAC level and not at pin one.
aplay with channel test sound shows a 4 channels audio, driving
subwoofer with both rear left and rear right data.
If I lower left or right volume, just opposite channel goes to
subwoofer.
I guess that mono mixing is done at widget 0x3e (the hidden one).
Massimo
next prev parent reply other threads:[~2012-11-07 17:02 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-31 16:49 Fix for Asus G75 notebook subwoofer Massimo Del Fedele
2012-11-01 8:11 ` Raymond Yau
2012-11-01 11:15 ` Massimo Del Fedele
2012-11-02 1:44 ` Raymond Yau
2012-11-02 14:57 ` Massimo Del Fedele
2012-11-03 0:37 ` Raymond Yau
2012-11-03 9:04 ` Massimo Del Fedele
2012-11-04 6:27 ` Raymond Yau
2012-11-04 9:31 ` Massimo Del Fedele
2012-11-07 0:50 ` Raymond Yau
2012-11-06 8:36 ` Takashi Iwai
2012-11-06 8:57 ` Massimo Del Fedele
2012-11-06 9:06 ` Takashi Iwai
2012-11-06 14:18 ` Massimo Del Fedele
2012-11-06 14:24 ` Takashi Iwai
2012-11-06 17:23 ` Massimo Del Fedele
2012-11-07 8:56 ` Takashi Iwai
2012-11-07 8:56 ` Takashi Iwai
2012-11-07 13:37 ` Massimo Del Fedele
2012-11-07 13:45 ` Takashi Iwai
2012-11-07 15:51 ` Massimo Del Fedele
2012-11-07 15:54 ` Takashi Iwai
2012-11-07 17:02 ` Massimo Del Fedele [this message]
2012-11-07 17:13 ` Takashi Iwai
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