From: Raymond Yau <superquad.vortex2@gmail.com>
To: ALSA Development Mailing List <alsa-devel@alsa-project.org>
Subject: Re: alsactl restore: unknown hardware: ymf724f
Date: Sat, 27 Feb 2010 21:45:12 +0800 [thread overview]
Message-ID: <4f3252891002270545s5fd181abhee48b2c4a7732497@mail.gmail.com> (raw)
In-Reply-To: <hmaq1l$m8o$1@dough.gmane.org>
2010/2/27 Angel Tsankov <fn42551@fmi.uni-sofia.bg>
>
> I'd also like to point out that in /etc/asound.state the values for
> control.48 are the maximum possible (if I interpret the values right),
> but when I stored the levels neither master, nor PCM was set to its
> maximum value.
>
> Regards,
> Angel Tsankov
>
>
That is the per voice volume control which use the hardware mixer in ymf754
chip instead of the mixer of ac97 codec
ymf754 has 32 playback subdevices , each subdevices has one hardware mixer
volume control
the values are set to 0dB by the driver when the subdevice is open , DSP can
mix 32 streams by hardware
when the driver is loaded there are 32 controls which are inactive and the
total number of controls should more that those controls in asound.state
since those iface PCM "PCM playback volume controls" are not saved at
shutdown because all 32 controls are inactive when 32 subdevices are closed
next prev parent reply other threads:[~2010-02-27 13:45 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-25 7:54 alsactl restore: unknown hardware: ymf724f Angel Tsankov
2010-02-25 8:25 ` Jaroslav Kysela
2010-02-25 13:31 ` Angel Tsankov
2010-02-25 14:05 ` Jaroslav Kysela
2010-02-25 23:11 ` Raymond Yau
2010-02-26 11:57 ` Angel Tsankov
2010-02-26 14:05 ` Pacho Ramos
2010-02-26 16:36 ` Angel Tsankov
2010-02-27 7:14 ` Raymond Yau
2010-02-28 1:29 ` Raymond Yau
2010-03-26 8:28 ` Angel Tsankov
2010-03-28 12:52 ` Raymond Yau
2010-03-28 21:37 ` Angel Tsankov
2010-03-29 1:10 ` Raymond Yau
2010-03-29 8:09 ` Angel Tsankov
2010-04-01 14:05 ` Raymond Yau
2010-04-01 21:52 ` Angel Tsankov
2010-04-01 22:52 ` Raymond Yau
2010-02-27 2:06 ` Raymond Yau
2010-02-27 8:09 ` Angel Tsankov
2010-02-27 8:37 ` Raymond Yau
2010-02-27 9:53 ` Angel Tsankov
2010-02-27 10:03 ` Angel Tsankov
2010-02-27 15:19 ` Angel Tsankov
2010-02-27 11:21 ` Raymond Yau
2010-02-27 13:45 ` Raymond Yau [this message]
2010-02-27 14:46 ` Angel Tsankov
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