From: Mark Brown <broonie@sirena.org.uk>
To: Oliver Ford <ipaqlinux@oliford.co.uk>
Cc: alsa-devel@alsa-project.org
Subject: Re: Problem setting mixer switch with amixer/alsactl.
Date: Mon, 27 Oct 2008 20:44:41 +0000 [thread overview]
Message-ID: <20081027204440.GA4135@sirena.org.uk> (raw)
In-Reply-To: <490100C9.7030907@oliford.co.uk>
On Thu, Oct 23, 2008 at 11:55:05PM +0100, Oliver Ford wrote:
> In terms of the control's direct effect, setting it in alsamixer gives:
> pxa2xx_ac97_write: 0c = af08
> setting it in amixer:
> pxa2xx_ac97_write: 0c = af09
On the one hand, that's odd. On the other hand, the low bit of register
0xc is just a volume control for the right DAC so shouldn't make any
odds really.
> However, after running the offending amixer command this no longer
> happens. It seems that the dapm_power_widgets() function determines that
> the DAC is off and so doesn't power any widgets on at all.
Well, it determines that there's not a complete path so it doesn't
bother powering anything up which isn't *quite* the same thing. It does
look like that's what's happening here - I can reproduce similar
behaviour here, though it's not quite the same system. I'll try to fix
this tomorrow.
next prev parent reply other threads:[~2008-10-27 20:44 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-22 18:47 Problem setting mixer switch with amixer/alsactl Oliver Ford
2008-10-22 20:57 ` Mark Brown
2008-10-22 22:56 ` Oliver Ford
2008-10-23 14:00 ` Mark Brown
2008-10-23 14:07 ` Oliver Ford
2008-10-23 22:55 ` Oliver Ford
2008-10-27 20:44 ` Mark Brown [this message]
[not found] ` <4900F6D2.6030305@oliford.co.uk>
2008-10-23 23:54 ` Mark Brown
2008-10-24 17:26 ` Mark Brown
2008-10-23 13:27 ` Mark Brown
2008-10-23 13:56 ` Oliver Ford
2008-10-23 14:01 ` Mark Brown
2008-10-23 17:45 ` Robert Jarzmik
2008-10-24 17:25 ` Mark Brown
2008-10-24 19:09 ` Robert Jarzmik
2008-10-24 20:32 ` Mark Brown
2008-10-28 13:10 ` Mark Brown
2008-10-28 15:34 ` Mark Brown
2008-10-28 15:41 ` Takashi Iwai
2008-10-28 15:48 ` Mark Brown
2008-10-28 15:54 ` Takashi Iwai
2008-10-28 21:51 ` Oliver Ford
2008-10-29 14:53 ` Mark Brown
2008-10-29 16:04 ` Mark Brown
2008-10-30 11:40 ` Mark Brown
2008-10-30 17:47 ` Oliver Ford
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