Re: Clevo P170HM / Sager NP8170 audio

[Julian Sikorski <belegdol@gmail.com>]

W dniu 29.11.2011 00:45, Raymond Yau pisze:
> 2011/11/28 Julian Sikorski <belegdol@gmail.com>:
>> W dniu 28.11.2011 01:42, Raymond Yau pisze:
>>> 2011/11/25 Julian Sikorski <belegdol@gmail.com>:
>>>> W dniu 25.11.2011 07:39, Raymond Yau pisze:
>>>>> 2011/11/22 Julian Sikorski <belegdol@gmail.com>:
>>>>>
>>>>> Don't have any realtek codec, not sure why hda-jack-sense-test.py
>>>>> locked up when you use user_pin_configs
>>>>>
>>>>>>>> I then applied your patch on top of Fedora 3.1.1 kernel (crude patch
>>>>>>>> attached). After reboot:
>>>>>>>> * hda-jack-sense-test.py was still working, without lockups this time
>>>>>>>> * alsamixer -c0 revealed a new "Front" slider, which was controlling the
>>>>>>>> volume on 0x17
>>>>>>>> * there was still no 8-channel mode (probably related to what you wrote
>>>>>>>> below)
>>>>>>>> * there were more options for auto mute (Disabled, Speaker Only, Line
>>>>>>>> Out+Speaker)
>>>>>>>> * here is the new alsa-info.sh:
>>>>>>>> http://www.alsa-project.org/db/?f=923b75ad3997dc8f5878852e327f9b999a196052
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>>>
>>>>>>>>> To add the missing pin default of side jack 0x17
>>>>>>>>>
>>>>>>>>>       ALC662_FIXUP_ASUS_MODE8,
>>>>>>>>> +     ALC892_FIXUP_CLEVO_4ST_8CH,
>>>>>>>>> };
>>>>>>>>>
>>>>>>>>> static const struct alc_fixup alc662_fixups[] = {
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> +     [ALC892_FIXUP_CLEVO_4ST_8CH] = {
>>>>>>>>> +             .type = ALC_FIXUP_PINS,
>>>>>>>>> +             .v.pins = (const struct alc_pincfg[]) {
>>>>>>>>> +/*
>>>>>>>>> +  need to be same location as the other jack
>>>>>>>>> +  may need to change the default association and sequence since
>>>>>>>>> +  Lower Default Association values would be higher in priority for resources
>>>>>>>>> +  such as processing nodes or Input and Output Converters.
>>>>>>>>> +  A value of 0000b is reserved and should not be used
>>>>>>>>> +*/
>>>>>>>>> +                     { 0x17, 0x01011013 }, /* Side */
>>>>>>>>> +                     { }
>>>>>>>>> +             },
>>>>>>>>> +     },
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> +     SND_PCI_QUIRK(0x1558, 0x5102, "Clevo P150HM", ALC892_FIXUP_CLEVO_4ST_8CH),
>>>>>>>>> +     SND_PCI_QUIRK(0x1558, 0x7100, "Clevo P170HM", ALC892_FIXUP_CLEVO_4ST_8CH),
>>>>>>>>>
>>>>>>>>> SImilar case are those notebooks  hda-emu/codecs/alc1200-msi-gx620
>>>>>>>>> which has 1 hp(green), 1 line-in(blue), 1 ext-mic(pink) and 1 line
>>>>>>>>> out(grey) at same location (ext rear)   for surround71 (and also 1
>>>>>>>>> speakers, 1 int mic)
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> hda_codec: ALC1200: BIOS auto-probing.
>>>>>>>>> hda_codec: ALC1200: SKU not ready 0x598301f0
>>>>>>>>> autoconfig: line_outs=1 (0x17/0x0/0x0/0x0/0x0) type:line
>>>>>>>>>    speaker_outs=1 (0x1b/0x0/0x0/0x0/0x0)
>>>>>>>>>    hp_outs=1 (0x14/0x0/0x0/0x0/0x0)
>>>>>>>>>    mono: mono_out=0x0
>>>>>>>>>    dig-out=0x1e/0x0
>>>>>>>>>    inputs: Mic=0x18 Internal Mic=0x19 Line=0x1a
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> CTRL: add: Line-Out Jack:0
>>>>>>>>> CTRL: add: Headphone Jack:0
>>>>>>>>> CTRL: add: Mic Jack:0
>>>>>>>>> CTRL: add: Line Jack:0
>>>>>>>>>
>>>>>>>>>> get 1
>>>>>>>>> 1 Channel Mode:0
>>>>>>>>> ITEM: 0:2ch, 1:4ch, 2:6ch, VAL: [2ch]
>>>>>>>>>
>>>>>
>>>>> After the pin fixup, your notebook is almost like alc1200 msi gx460
>>>>> except speaker and hp are swapped, this mean that those volume
>>>>> controls and switches are similar to targa_mixer , targa_8ch_mixer of
>>>>> model="targa-8ch-dig"
>>>>>
>>>>>>>>>
>>>>>>>>> This mean that when switch to 6/8 channel mode, it will conflict with
>>>>>>>>> automic detection since the pin cap alc892 's mic jack does not
>>>>>>>>> support impedance sense and the driver does not know the plug is mic
>>>>>>>>> or speaker by measuring the impedance
>>>>>>>>>
>>>>>>>>> The driver have to disable automic detection when user switch "channel
>>>>>>>>> mode" to 6ch/8ch as the user should still able to use the internal mic
>>>>>>>>> when the external mic jack is retasked as output
>>>>>>>>>
>>>>>
>>>>> The are some difference between p170hm and your p150hm if p170hm has
>>>>> 5.1 speakers which still can have auto mic detection enabled.
>>>>>
>>>>>
>>>>> you can add the following code in alc_auto_ch_mode_put() for debugging
>>>>> and need to switch "auto mute mode" to "speaker" for 8 channels
>>>>>
>>>>>
>>>>>       if (spec->need_dac_fix && !spec->const_channel_count)
>>>>>               spec->multiout.num_dacs = spec->multiout.max_channels / 2;
>>>>>
>>>>> +     printk(KERN_INFO "ch = %d\n",ch);
>>>>> +     printk(KERN_INFO "max channel %d\n",spec->multiout.max_channels);
>>>>> +     for (i=0; i<spec->autocfg.hp_outs; i++)
>>>>> +             printk(KERN_INFO "hp dac(%d) %x pin %x\n", i,
>>>>> spec->multiout.hp_out_nid[i], spec->autocfg.hp_pins[i]);
>>>>> +     for (i=0; i<spec->multiout.num_dacs; i++)
>>>>> +             printk(KERN_INFO "private_dac(%d) %x\n", i, spec->private_dac_nids[i]);
>>>>> +     for (i=0; i<spec->autocfg.line_outs; i++)
>>>>> +             printk(KERN_INFO "line_out(%d) pin %x\n", i, spec->autocfg.line_out_pins[i]);
>>>>> +     for (i=0; i<spec->multiout.num_dacs-1; i++)
>>>>> +             printk(KERN_INFO "multi_io(%d) dac %x pin %x\n", i,
>>>>> spec->multi_io[i].dac, spec->multi_io[i].pin);
>>>>> +     for (i=0; i<spec->autocfg.speaker_outs; i++)
>>>>> +             printk(KERN_INFO "extra_out(%d) dac %x pin %x\n", i,
>>>>> spec->multiout.extra_out_nid[i], spec->autocfg.speaker_pins[i]);
>>>>>                return 1
>>>>
>>>> This is what appears in /var/log/messages if you go from 8 to 2 channels
>>>> and back:
>>>>
>>>> Nov 25 13:05:11 snowball2 kernel: [ 1515.853640] ch = 2
>>>> Nov 25 13:05:11 snowball2 kernel: [ 1515.853642] max channel 6
>>>> Nov 25 13:05:11 snowball2 kernel: [ 1515.853643] hp dac(0) 0 pin 1b
>>>> Nov 25 13:05:11 snowball2 kernel: [ 1515.853644] private_dac(0) 2
>>>> Nov 25 13:05:11 snowball2 kernel: [ 1515.853645] private_dac(1) 3
>>>> Nov 25 13:05:11 snowball2 kernel: [ 1515.853646] private_dac(2) 4
>>>> Nov 25 13:05:11 snowball2 kernel: [ 1515.853647] private_dac(3) 5
>>>> Nov 25 13:05:11 snowball2 kernel: [ 1515.853648] line_out(0) pin 17
>>>> Nov 25 13:05:11 snowball2 kernel: [ 1515.853649] multi_io(0) dac 3 pin 1a
>>>> Nov 25 13:05:11 snowball2 kernel: [ 1515.853650] multi_io(1) dac 4 pin 18
>>>> Nov 25 13:05:11 snowball2 kernel: [ 1515.853651] multi_io(2) dac 5 pin 17
>>>> Nov 25 13:05:11 snowball2 kernel: [ 1515.853652] extra_out(0) dac 0 pin 14
>>>> Nov 25 13:05:24 snowball2 kernel: [ 1528.952829] ch = 1
>>>> Nov 25 13:05:24 snowball2 kernel: [ 1528.952835] max channel 4
>>>> Nov 25 13:05:24 snowball2 kernel: [ 1528.952840] hp dac(0) 0 pin 1b
>>>> Nov 25 13:05:24 snowball2 kernel: [ 1528.952843] private_dac(0) 2
>>>> Nov 25 13:05:24 snowball2 kernel: [ 1528.952846] private_dac(1) 3
>>>> Nov 25 13:05:24 snowball2 kernel: [ 1528.952849] private_dac(2) 4
>>>> Nov 25 13:05:24 snowball2 kernel: [ 1528.952852] private_dac(3) 5
>>>> Nov 25 13:05:24 snowball2 kernel: [ 1528.952855] line_out(0) pin 17
>>>> Nov 25 13:05:24 snowball2 kernel: [ 1528.952859] multi_io(0) dac 3 pin 1a
>>>> Nov 25 13:05:24 snowball2 kernel: [ 1528.952863] multi_io(1) dac 4 pin 18
>>>> Nov 25 13:05:24 snowball2 kernel: [ 1528.952866] multi_io(2) dac 5 pin 17
>>>> Nov 25 13:05:24 snowball2 kernel: [ 1528.952870] extra_out(0) dac 0 pin 14
>>>> Nov 25 13:05:26 snowball2 kernel: [ 1531.378952] ch = 0
>>>> Nov 25 13:05:26 snowball2 kernel: [ 1531.378958] max channel 2
>>>> Nov 25 13:05:26 snowball2 kernel: [ 1531.378963] hp dac(0) 0 pin 1b
>>>> Nov 25 13:05:26 snowball2 kernel: [ 1531.378966] private_dac(0) 2
>>>> Nov 25 13:05:26 snowball2 kernel: [ 1531.378969] private_dac(1) 3
>>>> Nov 25 13:05:26 snowball2 kernel: [ 1531.378972] private_dac(2) 4
>>>> Nov 25 13:05:26 snowball2 kernel: [ 1531.378975] private_dac(3) 5
>>>> Nov 25 13:05:26 snowball2 kernel: [ 1531.378978] line_out(0) pin 17
>>>> Nov 25 13:05:26 snowball2 kernel: [ 1531.378982] multi_io(0) dac 3 pin 1a
>>>> Nov 25 13:05:26 snowball2 kernel: [ 1531.379002] multi_io(1) dac 4 pin 18
>>>> Nov 25 13:05:26 snowball2 kernel: [ 1531.379006] multi_io(2) dac 5 pin 17
>>>> Nov 25 13:05:26 snowball2 kernel: [ 1531.379010] extra_out(0) dac 0 pin 14
>>>> Nov 25 13:06:29 snowball2 kernel: [ 1593.746269] ch = 1
>>>> Nov 25 13:06:29 snowball2 kernel: [ 1593.746275] max channel 4
>>>> Nov 25 13:06:29 snowball2 kernel: [ 1593.746279] hp dac(0) 0 pin 1b
>>>> Nov 25 13:06:29 snowball2 kernel: [ 1593.746283] private_dac(0) 2
>>>> Nov 25 13:06:29 snowball2 kernel: [ 1593.746286] private_dac(1) 3
>>>> Nov 25 13:06:29 snowball2 kernel: [ 1593.746289] private_dac(2) 4
>>>> Nov 25 13:06:29 snowball2 kernel: [ 1593.746291] private_dac(3) 5
>>>> Nov 25 13:06:29 snowball2 kernel: [ 1593.746295] line_out(0) pin 17
>>>> Nov 25 13:06:29 snowball2 kernel: [ 1593.746298] multi_io(0) dac 3 pin 1a
>>>> Nov 25 13:06:29 snowball2 kernel: [ 1593.746302] multi_io(1) dac 4 pin 18
>>>> Nov 25 13:06:29 snowball2 kernel: [ 1593.746306] multi_io(2) dac 5 pin 17
>>>> Nov 25 13:06:29 snowball2 kernel: [ 1593.746310] extra_out(0) dac 0 pin 14
>>>> Nov 25 13:06:31 snowball2 kernel: [ 1596.174127] ch = 2
>>>> Nov 25 13:06:31 snowball2 kernel: [ 1596.174133] max channel 6
>>>> Nov 25 13:06:31 snowball2 kernel: [ 1596.174195] hp dac(0) 0 pin 1b
>>>> Nov 25 13:06:31 snowball2 kernel: [ 1596.174199] private_dac(0) 2
>>>> Nov 25 13:06:31 snowball2 kernel: [ 1596.174202] private_dac(1) 3
>>>> Nov 25 13:06:31 snowball2 kernel: [ 1596.174205] private_dac(2) 4
>>>> Nov 25 13:06:31 snowball2 kernel: [ 1596.174208] private_dac(3) 5
>>>> Nov 25 13:06:31 snowball2 kernel: [ 1596.174211] line_out(0) pin 17
>>>> Nov 25 13:06:31 snowball2 kernel: [ 1596.174215] multi_io(0) dac 3 pin 1a
>>>> Nov 25 13:06:31 snowball2 kernel: [ 1596.174219] multi_io(1) dac 4 pin 18
>>>> Nov 25 13:06:31 snowball2 kernel: [ 1596.174223] multi_io(2) dac 5 pin 17
>>>> Nov 25 13:06:31 snowball2 kernel: [ 1596.174226] extra_out(0) dac 0 pin 14
>>>> Nov 25 13:06:33 snowball2 kernel: [ 1598.111893] ch = 3
>>>> Nov 25 13:06:33 snowball2 kernel: [ 1598.111900] max channel 8
>>>> Nov 25 13:06:33 snowball2 kernel: [ 1598.111904] hp dac(0) 0 pin 1b
>>>> Nov 25 13:06:33 snowball2 kernel: [ 1598.111908] private_dac(0) 2
>>>> Nov 25 13:06:33 snowball2 kernel: [ 1598.111911] private_dac(1) 3
>>>> Nov 25 13:06:33 snowball2 kernel: [ 1598.111914] private_dac(2) 4
>>>> Nov 25 13:06:33 snowball2 kernel: [ 1598.111917] private_dac(3) 5
>>>> Nov 25 13:06:33 snowball2 kernel: [ 1598.111920] line_out(0) pin 17
>>>> Nov 25 13:06:33 snowball2 kernel: [ 1598.111924] multi_io(0) dac 3 pin 1a
>>>> Nov 25 13:06:33 snowball2 kernel: [ 1598.111927] multi_io(1) dac 4 pin 18
>>>> Nov 25 13:06:33 snowball2 kernel: [ 1598.111931] multi_io(2) dac 5 pin 17
>>>> Nov 25 13:06:33 snowball2 kernel: [ 1598.111935] extra_out(0) dac 0 pin 14
>>>>
>>>>>
>>>>> Try the following code  which try to assign dac 02, 03, 04, and 05 to
>>>>> spec->private_dac front, surround, clfe and side.
>>>>>
>>>>> static int alc_auto_fill_dac_nids(struct hda_codec *codec)
>>>>> {
>>>>> ...
>>>>>  again:
>>>>>       /* set num_dacs once to full for alc_auto_look_for_dac() */
>>>>>       spec->multiout.num_dacs = cfg->line_outs;
>>>>>       spec->multiout.hp_out_nid[0] = 0;
>>>>>       spec->multiout.extra_out_nid[0] = 0;
>>>>>       memset(spec->private_dac_nids, 0, sizeof(spec->private_dac_nids));
>>>>>       spec->multiout.dac_nids = spec->private_dac_nids;
>>>>>
>>>>> +     if (cfg->hp_outs == 1 && cfg->line_outs == 1 &&
>>>>> +             cfg->num_inputs >= 3 && cfg->speaker_outs >= 1) {
>>>>> +/* assign 0x02 as Front DAC by using speaker or hp pins*/
>>>>> +             spec->private_dac_nids[0]  = alc_auto_look_for_dac(codec,
>>>>> cfg->speaker_pins[0]);
>>>>> +/* hp , mic and line-in at the same location
>>>>> +   use alc_auto_fill_multi_ios() to assign surround and clfe dacs
>>>>> +*/
>>>>> +             defcfg = snd_hda_codec_get_pincfg(codec, cfg->hp_pins[0]);
>>>>> +             location = get_defcfg_location(defcfg);
>>>>> +             spec->multiout.num_dacs = 1;
>>>>> +             num_pins = alc_auto_fill_multi_ios(codec, location, 1);
>>>>> +             if (num_pins > 0) {
>>>>> +                     spec->multi_ios = num_pins;
>>>>> +                     spec->ext_channel_count = 2;
>>>>> +                     spec->multiout.num_dacs = num_pins + 1;
>>>>> +             }
>>>>> +/* an ugly hack to add side as multi io even side does not support input
>>>>> +   set pin ctl to PIN_OUT to set multi_io[2].ctl_in to PIN_OUT */
>>>>> +             if (location == get_defcfg_location(snd_hda_codec_get_pincfg(codec,
>>>>> cfg->line_out_pins[0]))) {
>>>>> +                     spec->private_dac_nids[3] = alc_auto_look_for_dac(codec,
>>>>> cfg->line_out_pins[0]);
>>>>> +                     spec->multi_io[2].dac = spec->private_dac_nids[3];
>>>>> +                     spec->multi_io[2].pin = cfg->line_out_pins[0];
>>>>> +                     snd_hda_codec_write(codec, cfg->line_out_pins[0], 0,
>>>>>                               AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
>>>>> +                     spec->multi_ios++;
>>>>> +                     spec->multiout.num_dacs++;
>>>>> +             }
>>>>> +             return 0;
>>>>> +     }
>>>>
>>>> It is much better now. I applied the attached patch and 2, 4, 6 and 8
>>>> channel sound is working, enabling outputs incrementally as I change the
>>>> number of channels in alsamixer. Observations:
>>>
>>>
>>>> * there is no mute for side channel
>>>
>>>> * no matter if Auto-Mute is set to Speaker or Line Out+Speaker, speakers
>>>> will mute upon plugging a jack into either headphone or side/spdif socket
>>>> * there is a "front" slider which controls internal speakers and HP
>>>> jack, but the mute control under it does nothing. There are separate
>>>> mute controls for HP and Speakers, which work as advertised.
>>>> This is the alsa-info.sh output:
>>>> http://www.alsa-project.org/db/?f=7df8ccac0a5ae751110f7b7e56f9e0ba5cc3b302
>>>> Looks like we are almost there, thanks for all the input so far!
>>>
>>>
>>> There is a bug in hda-emu which cannot detect two playback switches
>>> "Front" and "Side" create at same switch pin
>>>
>>> Try add the following to dump the value of switch pin
>>>
>>> In function alc_auto_create_multi_out_ctls()
>>>
>>>
>>> +                     printk(KERN_INFO "%s playback volume %x pin %x\n",name,vol,pin);
>>>                       err = alc_auto_add_stereo_vol(codec, name, index, vol);
>>>                       if (err < 0)
>>>                               return err;
>>> +                     printk(KERN_INFO "%s playback switch %x\n",name,sw);
>>>                       err = alc_auto_add_stereo_sw(codec, name, index, sw);
>>>                       if (err < 0)
>>>                               return err;
>>
>> This is what is shown in /var/log/messages:
>>
>> Nov 28 11:59:27 snowball2 kernel: [   19.156689] Front playback volume 2
>> pin 14
>> Nov 28 11:59:27 snowball2 kernel: [   19.156695] Front playback switch 14
>> Nov 28 11:59:27 snowball2 kernel: [   19.156789] Surround playback
>> volume 3 pin 1a
>> Nov 28 11:59:27 snowball2 kernel: [   19.156794] Surround playback switch 1a
>> Nov 28 11:59:27 snowball2 kernel: [   19.156956] Side playback volume 5
>> pin 17
>> Nov 28 11:59:27 snowball2 kernel: [   19.156960] Side playback switch 17
>>
>>>
>>>>>>>>>>> Plug the front speaker cables into the Headphone-Out Jack.
>>>>>>>>>>>
>>>>>>>>>>> • Line-In Jack = Rear Speaker Out
>>>>>>>>>>> • Microphone-In Jack = Center/Subwoofer Speaker Out
>>>>>>>>>>> • S/PDIF-Out Jack = Side Speaker Out (for 7.1 Surround Sound Only)
>>>
>>>
>>> Method 1) HP Playback volume for HP jack and Speaker Playback Volume
>>>
>>>
>>>  fix the "Side Playback Switch" and "Front playback Switch"
>>>
>>> In function alc_auto_create_multi_out_ctls()
>>>
>>>               else
>>> -                     pin = cfg->line_out_pins[i];
>>> +                     if (cfg->speaker_pins[0] &&
>>> +                             get_defcfg_location(snd_hda_codec_get_pincfg(codec, cfg->hp_pins[0])) ==
>>>                               get_defcfg_location(snd_hda_codec_get_pincfg(codec, cfg->line_out_pins[0])))
>>> +                             pin = cfg->speaker_pins[0];
>>> +                     else
>>> +                             pin = cfg->line_out_pins[i];
>>>
>>> add "Headpone Playback Volume" by using dac 0x25
>>>
>>> In function alc_auto_fill_dac_nids() and the end of previous patch in
>>> previous email
>>>
>>>                       spec->multi_ios++;
>>>                       spec->multiout.num_dacs++;
>>>               }
>>> +             spec->multiout.hp_out_nid[0] = alc_auto_look_for_dac(codec, cfg->hp_pins[0]);
>>>               return 0;
>>>
>>>
>>>>>>>>>>> • S/PDIF-Out Jack = Side Speaker Out (for 7.1 Surround Sound Only)
>>>
>>> assign dac spec->alt_dac_nid for creating alt playback device
>>>
>>> aplay -Dhw:0,2 any.wav
>>>
>>> Try either a) or b) but not both
>>> a) use "side jack" for "alt playback" but device 2 be disabled when
>>> channel mode is 8ch
>>>
>>> In function alc_auto_fill_dac_nids()
>>>
>>> +     spec->alt_dac_nid = spec->private_dac_nids[3];
>>>       return 0;
>>>
>>> in function alc_set_multi_io()
>>>
>>>
>>>       } else {
>>> +              if ( i < 2 ) {
>>> -             if (get_wcaps(codec, nid) & AC_WCAP_OUT_AMP)
>>>                       snd_hda_codec_amp_stereo(codec, nid, HDA_OUTPUT, 0,
>>>                                                HDA_AMP_MUTE, HDA_AMP_MUTE);
>>> -             snd_hda_codec_update_cache(codec, nid, 0,
>>>                                          AC_VERB_SET_PIN_WIDGET_CONTROL,
>>>                                          spec->multi_io[idx].ctl_in);
>>>
>>> +                    if (get_wcaps(codec, nid) & AC_WCAP_OUT_AMP)
>>>                            snd_hda_codec_amp_stereo(codec, nid, HDA_OUTPUT, 0,
>>>                                                HDA_AMP_MUTE, HDA_AMP_MUTE);
>>> +                     snd_hda_codec_update_cache(codec, nid, 0,
>>>                                          AC_VERB_SET_PIN_WIDGET_CONTROL,
>>>                                          spec->multi_io[idx].ctl_in);
>>> +             }
>>>
>>
>> With the above version and everything is almost perfect:
>>
>> http://www.alsa-project.org/db/?f=35d300b2eaec79699ec37febc6321687a894be50
>>
>> * mute for side channel is present and functions correctly
>> * auto-mute situation is unchanged, but I don't think it matters
>> * speaker/HP controls are much neater
>>  - front mute and slider control the internal speakers
>>  - headphone mute and slider control the headphone jack
>>
>> The only nitpick would be that the alt device does not work:
> 
> There was a patch which add "Independent hp" swtich and create device
> 2 for alc892 desktop with 6 jacks at rear panel
> 
> http://thread.gmane.org/gmane.linux.alsa.devel/84653/focus=84695
> 
> APLAY
> 
> **** List of PLAYBACK Hardware Devices ****
> card 0: Intel [HDA Intel], device 0: ALC892 Analog [ALC892 Analog]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> card 0: Intel [HDA Intel], device 2: ALC892 Analog [ALC892 Analog]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> card 0: Intel [HDA Intel], device 3: ALC892 Digital [ALC892 Digital]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> 
> you can change "independent_hp" to "alt playback" in that patch
> 
> 	hda_nid_t alt_dac_nid;
> +	int alt_playback;
> +	int alt_playback_max;
> 
> 
> static int alc_alt_playback_info(struct snd_kcontrol *kcontrol,
> 				   struct snd_ctl_elem_info *uinfo)
> {
> 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
> 	struct alc_spec *spec = codec->spec;
> 	static const char * const texts[] = { "OFF", "Headphone", "Side", NULL};
> 	int index;
> 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
> 	uinfo->count = 1;
> 	uinfo->value.enumerated.items = spec->alt_playback_max;
> 	index = uinfo->value.enumerated.item;
> 	if (index >= spec->alt_playback_max)
> 		index = 1;
> 	strcpy(uinfo->value.enumerated.name, texts[index]);
> 	return 0;
> }
> 
> static int alc_alt_playback_get(struct snd_kcontrol *kcontrol,
> 				  struct snd_ctl_elem_value *ucontrol)
> {
> 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
> 	struct alc_spec *spec = codec->spec;
> 	ucontrol->value.enumerated.item[0] = spec->alt_playback;
> 	return 0;
> }
> 
> static int alc_alt_playback_put(struct snd_kcontrol *kcontrol,
> 				  struct snd_ctl_elem_value *ucontrol)
> {
> 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
> 	struct alc_spec *spec = codec->spec;
> 	unsigned int select = ucontrol->value.enumerated.item[0];
> 	if (spec->alt_playback != select) {
> 	        spec->alt_playback = select;
> 		switch(spec->alt_playback) {
> 			spec->multiout.hp_out_nid[0] = 0;
> 			break;
> 		case 1:
> 			spec->multiout.hp_out_nid[0] = spec->alt_dac_nid;
> 			break;
> 		case 2:
> 			break;
> 		}
> 		return 1;
> 	}
> 	return 0;
> }
> 
> static const struct snd_kcontrol_new alc_alt_playback_switch[] = {
> 	{
> 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
> 		.name = "Alternate Playback Switch",
> 		.info = alc_alt_playback_info,
> 		.get = alc_alt_playback_get,
> 		.put = alc_alt_playback_put,
> 	},
> 	{ } /* end */
> };
> 

I tried 0001-Add-Multistreaming-Playback-using-Front-Panel-Headph.patch,
but unfortunately it does not apply on top of current kernels anymore,
and it is not trivial enough for me to fix.
Anyway, in my opinion it does not make a lot of sense, as the jacks are
2 cm away from each other and I don't see a use case where someone would
want to play a different sound on each of them.

>>
>> $ aplay -l
>> **** List of PLAYBACK Hardware Devices ****
>> card 0: PCH [HDA Intel PCH], device 0: ALC892 Analog [ALC892 Analog]
>>  Subdevices: 1/1
>>  Subdevice #0: subdevice #0
>> card 0: PCH [HDA Intel PCH], device 1: ALC892 Digital [ALC892 Digital]
>>  Subdevices: 1/1
>>  Subdevice #0: subdevice #0
>> card 1: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
>>  Subdevices: 1/1
>>  Subdevice #0: subdevice #0
>> card 1: NVidia [HDA NVidia], device 7: HDMI 0 [HDMI 0]
>>  Subdevices: 1/1
>>  Subdevice #0: subdevice #0
>> card 1: NVidia [HDA NVidia], device 8: HDMI 0 [HDMI 0]
>>  Subdevices: 1/1
>>  Subdevice #0: subdevice #0
>> card 1: NVidia [HDA NVidia], device 9: HDMI 0 [HDMI 0]
>>  Subdevices: 1/1
>>  Subdevice #0: subdevice #0
>>
>> And that the sound is coming out of the side jack no matter the number
>> of channels.
>>
>>>
>>> b) use "Headphone" for "alt playback"
>>>
>>> In function alc_auto_fill_dac_nids()
>>>
>>> +      spec->alt_dac_nid = spec->multiout.hp_out_nid[0];
>>>       return 0;
>>
>> I also tried this version (attached with versionb suffix), it works even
>> better. As with version a), controls are working correctly. Auto-mute
>> still mutes upon plugging into either side or headphone jack no matter
>> the alsamixer setting. Alt device is still not there. The improvement is
>> that sound only comes out of the side jack when alsamixer is set to 8
>> channels.
>>
>> http://www.alsa-project.org/db/?f=31f808d43fc26c29718d239600741b5b069ce427
>>
>> So it seems like the version b does everything it is supposed to, maybe
>> aside from the side jack muting behaviour.
>> Summing up, when it comes to P150HM, the only missing piece is the
>> internal subwoofer. I tried emailing Andrew, who started this thread,
>> but got no answer so far. The problem might be that we might need to
>> figure out what is that THX TruStudio PRO is doing under Windows that
>> makes the internal subwoofer work.
> 
> 
> Take a look at the removed model="targa_8ch_dig" which touch those gpio
> 
> Have you ask the notebook vendor clevo support/engineer the subwoofer
> is connected to which pin of alc892 ?

I have just sent an email to Clevo UK Support. Let's see what they answer.

> 
>> Once again, thank you for all the input so far.
>>
>> Best regards,
>> Julian
>>