From: Clemens Ladisch <clemens@ladisch.de>
To: Tanu Kaskinen <tanu.kaskinen@digia.com>
Cc: alsa-devel@alsa-project.org
Subject: Re: Question about snd_mixer_selem_get_playback_dB_range()
Date: Mon, 21 Mar 2011 15:38:59 +0100 [thread overview]
Message-ID: <4D876303.3090100@ladisch.de> (raw)
In-Reply-To: <1300715722.24854.290.camel@IT-W2076>
Tanu Kaskinen wrote:
> On Mon, 2011-03-21 at 15:43 +0200, Raymond Yau wrote:
> > AFAIK , only those STAC920x codec has SND_CTL_TLV_DB_GAIN_MUTE
>
> Also some broken HDA cards,
Where "some" = "those that use a STAC920x codec".
> What is not any driver bug?
That the hardware reported a wrong dB value for the lowest volume
setting. The latest driver has a workaround.
> Is it a bug in alsa (the driver or alsa-lib or whatever) if
> snd_mixer_selem_get_playback_dB_range() returns something else than
> SND_CTL_TLV_DB_GAIN_MUTE as the min gain, if the lowest volume step for
> the element is mute?
Yes.
Regards,
Clemens
next prev parent reply other threads:[~2011-03-21 14:37 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-21 12:52 Question about snd_mixer_selem_get_playback_dB_range() Tanu Kaskinen
2011-03-21 13:43 ` Raymond Yau
2011-03-21 13:55 ` Tanu Kaskinen
2011-03-21 14:38 ` Clemens Ladisch [this message]
2011-03-21 14:44 ` Tanu Kaskinen
2011-03-22 7:02 ` Peter Ujfalusi
2011-03-22 7:11 ` Clemens Ladisch
2011-04-11 2:19 ` Raymond Yau
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