Re: no front speaker sound with ALC262

[Takashi Iwai <tiwai@suse.de>]

At Wed, 27 Feb 2008 00:19:58 +0100,
Rene Dohmen wrote:
> 
> Hi,
> 
> I compiled the HG version. The driver behaves in the exact same way as the
> 1.0.16 version. Very very low volume on the headphone output, like hearing sound
> form another channel on a mixer because of crosstalk (i don't know is this is
> the correct translation).

And is it so with all module options?

> I also compiled hda_verb and used it to twiddle around with some of the
> connections. So far no luck.
> 
> Can I do something to boost the volume level? Or is this also caused by the
> incorrect pin wiring of the device? Maybe the speakers do output some sound but
> because of the the low soundlevel i can't hear it.

EAPD might be the case.  Set via "SET_EAPD 0x02" to turn on the
amplifier (if any).


Takashi

> 
> Thanks,
> 
> Rene
> 
> On Tue, Feb 26, 2008 at 1:21 PM, Rene Dohmen <acidjunk@gmail.com> wrote:
> 
>     Thnx for your answer.
>     The preset models ( i tested the ones in 1.0.16 didn't work so i'll
>     have a try with the latest HG version)
>    
>     Having fun,
>    
>            Rene
>    
>     Op Feb 26, 2008, om 1:10 PM heeft Takashi Iwai het volgende geschreven:
>    
>     > At Mon, 25 Feb 2008 13:49:43 +0100,
>     > Rene Dohmen wrote:
>     >>
>     >> Hi List,
>     >>
>     >> Is there any chance that this bug will be fixed soon?
>     >
>     > Well, it's up to you.
>     >
>     > One of the problems is that BIOS on your machine doesn't give the
>     > useful information for auto-probing at all.  A typical workaround in
>     > such a case is to try the existing preset models.  Pass model=basic or
>     > model=benq to snd-hda-intel module, for example.  The available model
>     > values can be found in ALSA-Configuration.txt.  Don't forget to
>     > check and adjust the mixer status again after changing the model
>     > because the mixers appear completly differently depending on the
>     > model.
>     >
>     > If none of the existing models doesn't match with your device, we have
>     > to figure out the exact codec configuration.  For some codecs like
>     > ALC880 or ALC260, you have model=test option that allows you to test
>     > all codec configurations via mixer interface.  Unfortunately, ALC262
>     > has no model=test support, so you have to do check it literally
>     > manually.  Below is a brief instruction how to explore the mysterious
>     > world of HD-audio codecs.
>     >
>     > First of all, install the very latest ALSA HG version.  Don't stick
>     > with 1.0.16 release.  You can use the daily snapshot tarball instead,
>     > too.
>     >
>     > Then, get hda-verb program found on
>     >       ftp://ftp.suse.com/pub/people/tiwai/misc/
>     > Extract the tarball, run make.  Install it or invoke it locally.  This
>     > program can be usable only as root.
>     >
>     > The next step is to get ALC262 datasheet from Realtek web site.  Take
>     > a look at the block diagram page.  There are pins in the right side
>     > and two DACs in the left side.  We have to set up the correct pins and
>     > connect to the DAC properly.
>     >
>     > Now, assume the port-D (NID 0x14) is the speaker output.  Check
>     > /proc/asound/card0/codec#0 and look for Node 0x14.  It may have the
>     > entry like the following:
>     >
>     >       Node 0x14 [Pin Complex] wcaps 0x40018f: Stereo Amp-In Amp-Out
>     >         Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x27, mute=0
>     >         Amp-In vals:  [0x00 0x00] [0x00 0x00]
>     >         Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
>     >         Amp-Out vals:  [0x80 0x80]
>     >         Pincap 0x083e: IN OUT HP Detect Trigger
>     >         Pin Default 0x411111f0: [N/A] Speaker at Ext Rear
>     >           Conn = 1/8, Color = Black
>     >           DefAssociation = 0xf, Sequence = 0x0
>     >           Misc = NO_PRESENCE
>     >         Pin-ctls: 0x20: IN
>     >         Unsolicited: tag=00, enabled=0
>     >         Connection: 2
>     >            0x0c* 0x0d
>     >
>     > For this widget, we have a couple of things to do: fix the pin type,
>     > adjust the amp and check the connection.  First, change the pin type
>     > to the correct one, the output type.  Usually, it's either 0x40 or
>     > 0xc0.  The latter type is with a headphone amplifier.  Let's take
>     > 0xc0 as an example.  Call hda-verb like below (as root user):
>     >
>     >       # hda-verb /dev/snd/hwC0D0 0x14 SET_PIN_WID 0xc0
>     >
>     > Check /proc/asound/card0/codec#0 again whether the pin-ctls is changed
>     > properly.  Similarly, unmute the output volume of this widget with
>     > hda-verb.  For this, pass 0xb000 to SET_AMP verb:
>     >
>     >       # hda-verb /dev/snd/hwC0D0 0x14 SET_AMP 0xb000
>     >
>     > 0xb000 means to set the AMP-output to 0x00.  The mute bit is 0x80, so
>     > 0x00 means to unmute and set the volume 0.  (The volume 0 doesn't
>     > matter because this widget has no volume but only mute control.)
>     >
>     > In the example above, this pin is connected from the NID 0x0c, which
>     > is a mixer amp.  That's fine and let's keep as is.
>     > Check this widget 0x0c whether the first Amp-In vals is unmuted
>     > (i.e. has *no* 0x80 bit mask).  The first element of 0x0c is connected
>     > to the DAC, 0x02, directly.  If it's muted, call like below
>     >
>     >       # hda-verb /dev/snd/hwC0D0 0x0c SET_AMP 0x7000
>     >
>     > 0x7000 means to set the AMP-input of the first element (index 0) to
>     > 0x00.  For the second element, it'd be 0x7100.
>     >
>     > OK, all set ready.  Try aplay and pray.  If this doesn't work, try
>     > other ports as well until you find a gold mine.
>     >
>     > You could check the inputs similarly if anything doesn't work.
>     > Once after you figure out all pin configurations, we can create a new
>     > model (or fix the existing model) to adapt your device.
>     >
>     > Have fun,
>     >
>     >
>     > Takashi
>    
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