linux-kernel - Re: 3.19-rc1 regression bisected No sound on Dell Latitude d430

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Date:	Mon, 12 Jan 2015 12:55:42 +0100
From:	Takashi Iwai <tiwai@...e.de>
To:	David Henningsson <david.henningsson@...onical.com>
Cc:	Hans de Bruin <jmdebruin@...net.nl>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: 3.19-rc1 regression bisected No sound on Dell Latitude d430

At Mon, 12 Jan 2015 11:59:25 +0100,
David Henningsson wrote:
> 
> 
> 
> On 2015-01-11 22:44, Hans de Bruin wrote:
> > running 3.19-rc1 alsamixer show these options:
> >
> > Master
> > PCM
> > Line Out
> > Mic Boost
> > Auto Mute mode
> >
> > Line out now controls the vole of the speaker (this 'new' channel had
> > volume 0 so did not hear anything). Changing PCM has no effect.
> 
> So, now that you have adjusted "Line Out" you have sound again, correct?
> 
> Then this might be easiest resolved by just adding a "Line Out" section 
> to /usr/share/alsa/init/default that intializes Line Out to something 
> else than zero. We probably should do that anyway.
> 
> Takashi, do you agree? If so I'll write a patch for it.

Yes, that would be good.

Though, "Line Out" should have been initialized to 0dB as a vmaster
slave by the driver itself (of course only before alsactl saves the
state).


Takashi
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