[alsa-devel] Internal speaker output from Sony Vaio Z (2010 model) lost somewhere between 3.1.0 and 3.2.6

[Takashi Iwai]

At Fri, 16 Mar 2012 16:10:09 -0700,
Adam Williamson wrote:
> 
> Welp, pretty much as the topic says.
> 
> I just noticed today that sound is no longer playing from the internal
> speakers of my laptop, a 2010 model Sony Vaio Z. Plugging in headphones
> causes sound to be played fine through those. There are three possible
> choices for 'Connector' - 'Analog Speakers', 'Analog Output', and
> 'Analog Headphones' - but none of these seems to make sound come out of
> the internal speakers. The default is 'Analog Speakers', and when it's
> set to this, headphone output does work when headphones are plugged in.
> 
> I've verified that it's broken on Fedora 16 kernels 3.2.6-4, 3.2.8-3 and
> 3.2.10-1. It's also broken in a very recent Fedora 17 kernel, 3.3.0rc6
> or so. It works on a Fedora 16 live image, with kernel 3.1.0-1.
> Unfortunately the kernels before 3.2.6 have been trashed from Fedora's
> buildsystem archives, I think, so it's hard to narrow things down any
> further :/
> 
> the alsa-info output is
> http://www.alsa-project.org/db/?f=368e2359757b537d4daa0f5399830d3942540196 .

At best, please provide the alsa-info.sh on the working kernel, too.
You could install 3.1.x in addition to the current one just to check
whether it works (i.e. no user-space side problem).

The codec amp values for the speaker pin in the alsa-info.sh output
above looks OK, so the problem is something else such as GPIO.
In the case of GPIO, it can be turned on/off by hda-verb, e.g.

	hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_MASK 0x01
	hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_DIR 0x01
	hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_DATA 0x01

and/or

	hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_MASK 0x02
	hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_DIR 0x02
	hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_DATA 0x02


Takashi