On Thu, 23 Apr 2009 14:04:12 +0300, Takashi Iwai <tiwai@suse.de> wrote:
> At Thu, 23 Apr 2009 11:58:58 +0300
> Aleh wrote:
>>
>> Hi,
>>
>> I had a problem with muting speakers when headphones are plugged-in on  
>> my
>> Benq S32B. So I added proper board configuration to
>> sound/pci/hda/patch_realtek.c and now it works.
>>
>> I wonder if anyone has similar hardware (S-series Benq laptop) to test  
>> the
>> patch (attached) if you find it useful.
>
> Thanks for the patch.
> The lack of headphone mute is likely because of codec SSID value.
> The realtek codec is supposed to have some special SSID indicating
> the assembly information, but many vendors don't follow it.
>
> Could you try the patch below and try model=auto?  It's found in
> sound-unstable tree, too...


Downloaded and installed
     http://ftp.kernel.org/pub/linux/kernel/people/tiwai/alsa/alsa-driver/alsa-driver-unstable-snapshot.tar.bz2
in accordance with those instructions:
     http://alsa-project.org/main/index.php/Matrix:Module-hda-intel

loaded it with option 'model=auto' as you suggested, launched mplayer and  
plugged/unplugged headphones several times.
Unfortunately, those actions weren't recognized and laudspeakers continued  
playing without any interruption.

Please see alsa-info.sh output in attachment.

- Aleh