[alsa-devel] [Fwd: HP DV4 1155 SE - No Sound through speakers...]

[Takashi Iwai]

At Fri, 13 Feb 2009 14:22:00 -0500,
Tim Barnette wrote:
> 
> ..And it worked!  I now have sound!  Can you tell me what I actually did here?

The problem was that your BIOS didn't set the correct default pin
configuration.  The driver doesn't know which pin should be used for
the speaker output, as a consequence, it's set as INPUT.
Now you set it OUTPUT manually by hda-verb, and (fortunately) the
route to that pin was alive even though it wasn't declared, you get
the speaker output now.

The next step is to implement a proper pin-config to override by
the driver.  This won't be much work, but hey, wait for a while.

(Or, did Herton already work on that?)


thanks,

Takashi

> 
> On Fri, Feb 13, 2009 at 2:16 PM, Tim Barnette <tim.barnette at gmail.com> wrote:
> 
>     Takashi, I was able to build hda-verb and when I executed the command
>     below, it responded with:
>     nid=0xd, verb=0x707, param=0x40
>     value=0x0
> 
>     On Mon, Feb 2, 2009 at 10:25 AM, Takashi Iwai <tiwai at suse.de> wrote:
>    
>         At Mon, 2 Feb 2009 10:17:03 -0500,
>         Tim Barnette wrote:
>         >
>         > Thanks, Takashi. I made this change and rebooted.
>         >
>         > I noticed right away the mute light is no longer on... but still no
>         sound
>         > through speakers, only headphones..
>         >
>         > /sys/module/snd_hda_intel/parameters/model
>         > contains
>         > hp-dv5,<NULL>,<NULL>,<NULL>,<NULL>,<NULL>,<NULL>,<NULL>
>         >
>         > attached is the alsa-info.txt you requested..
>        
>         Did you try the latest alsa-driver snapshot?
>        
>         If it still doesn't work, I guess this is a BIOS problem.
>         The other HP dv laptops show the widget 0x0d as the speaker while
>         yours is unused.
>        
>         Try to run:
>                hda-verb /dev/snd/hwC0D0 0x0d SET_PIN_WID 0x40
> 
>         Takashi
> 
>