[alsa-devel] [Fwd: HP DV4 1155 SE - No Sound through speakers...]
tiwai at suse.de
Sat Feb 14 11:24:15 CET 2009
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?)
> 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
> 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
> > 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
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