[alsa-devel] hda-intel front headphone (8086:27d8 1043:83bc)

[Alex]

> 2011/7/4 Alex <xenogenesi at virgilio.it>:
> > Hi,
> > 
> > I run a Debian/sid on an Asus P5KPL-SE mainboard, the snd-hda-intel seem
> > to work fine, ever if it run with guess method:
> > 
> > Unknown hardware: "HDA-Intel" "Realtek ALC887"
> > "HDA:10ec0887,104383bc,00100202" "0x1043" "0x83bc"
> > Hardware is initialized using a guess method
> 
> This is the message from "alsactl init"

yes

> > The only annoying thing is about the front headphone, every mixer
> > application show the front headphone item but doesn't have adjustable
> > level and I hear nothing on headphone.
> > 
> > Any hint?
> > 
> > http://www.alsa-project.org/db/?f=d6bc3005fab4683f2606e48f2bc909258a4ee3e
> > 3
> 
> The codec alc887 in your  Asus P5KPL-SE seem different from
> 
> http://www.asus.com/Motherboards/Intel_Socket_775/P5KPL_SE/#specifications
> 
> ALC662 High Definition Audio 6 -Channel CODEC
> Audio Jack-detect Technology
> 
> according to your codec info
> 
> it seem that those fix_pin and multi_pin have the same capability to
> connect to any DAC
> 
> 
> static int alc880_auto_create_extra_out(struct alc_spec *spec, hda_nid_t
> pin, const char *pfx)
> {
> 
> 	} else if (alc880_is_multi_pin(pin)) {
> +		nid = alc880_idx_to_dac(alc880_multi_pin_idx(pin));
> +		/* specify the DAC as the extra output */
> +		if (!spec->multiout.hp_nid)
> +			spec->multiout.hp_nid = nid;
> +		else
> +			spec->multiout.extra_out_nid[0] = nid;
> +		/* control HP volume/switch on the output mixer amp */
> +		nid = alc880_idx_to_mixer(alc880_multi_pin_idx(pin));
> +		err = add_pb_vol_ctrl(spec, ALC_CTL_WIDGET_VOL, pfx,
> +				  HDA_COMPOSE_AMP_VAL(nid, 3, 0, HDA_OUTPUT));
> +		if (err < 0)
> +			return err;
> 		/* set manual connection */
> 		/* we have only a switch on HP-out PIN */
> 		err = add_pb_sw_ctrl(spec, ALC_CTL_WIDGET_MUTE, pfx,
> 				  HDA_COMPOSE_AMP_VAL(pin, 3, 0, HDA_OUTPUT));
> 		if (err < 0)
> 			return err;
> 	}
> 	return 0;

My knowledge of audio/alsa programming is really poor, but if someone suggest 
a patch I can setup the thing and do some debug.