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[Raymond <1313904@xxxxxxxxxxxxxxxxxx>]

http://git.kernel.org/cgit/linux/kernel/git/tiwai/hda-
emu.git/tree/codecs/vt1802-asus-u30s?id=HEAD


compare with this notebook,  device 0 nid is using speaker 's audio output and device 2 is using headphone 's audio output

seem spec->gen.indep_hp = 1 is not enough to force the driver to use
speaker audio output by device 0


=> lo_type=2, wired=1, mio=1, badness=0x0
multi_outs = 25/0/0/0 : 8/0/0/0 (type HP)
  out path: depth=4 :08:35:15:25
spk_outs = 24/0/0/0 : 9/0/0/0
  spk path: depth=4 :09:34:14:24
  mix path: depth=4 :08:21:15:25
  mix path: depth=4 :08:21:14:24
==> Best config: lo_type=2, wired=1, mio=1
multi_outs = 25/0/0/0 : 8/0/0/0 (type HP)
  out path: depth=4 :08:35:15:25
spk_outs = 24/0/0/0 : 9/0/0/0
  spk path: depth=4 :09:34:14:24
  mix path: depth=4 :08:21:15:25
  mix path: depth=4 :08:21:14:24

https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/tree/sound/pci/hda/hda_generic.c

you need to change

static bool indep_hp_possible(struct hda_codec *codec)
{
	struct hda_gen_spec *spec = codec->spec;
	struct auto_pin_cfg *cfg = &spec->autocfg;
	struct nid_path *path;
	int i, idx;

+ 	if (cfg->line_out_type == AUTO_PIN_HP_OUT)
+               return false;

	if (cfg->line_out_type == AUTO_PIN_HP_OUT)
		idx = spec->out_paths[0];


http://git.kernel.org/cgit/linux/kernel/git/tiwai/hda-
emu.git/tree/codecs/vt1802-asus-g75?id=HEAD

but it is strange that there are two volume controls in same node when
it has headphone, speaker and subwoofer


Node 0x08 [Audio Output] wcaps 0x41d: Stereo Amp-Out
  Control: name="Front Playback Volume", index=0, device=0
    ControlAmp: chs=3, dir=Out, idx=0, ofs=0
  Control: name="Headphone Playback Volume", index=0, device=0
    ControlAmp: chs=3, dir=Out, idx=0, ofs=0
  Device: name="VT1802 Analog", type="Audio", device=0
  Amp-Out caps: ofs=0x2a, nsteps=0x2a, stepsize=0x05, mute=0
  Amp-Out vals:  [0x22 0x22]
  Converter: stream=8, channel=0
  PCM:
    rates [0x5e0]: 44100 48000 88200 96000 192000
    bits [0xe]: 16 20 24
    formats [0x1]: PCM
  Power states:  D0 D1 D2 D3 EPSS
  Power: setting=D0, actual=D0
Node 0x09 [Audio Output] wcaps 0x41d: Stereo Amp-Out
  Control: name="Surround Playback Volume", index=0, device=0
    ControlAmp: chs=3, dir=Out, idx=0, ofs=0
  Amp-Out caps: ofs=0x2a, nsteps=0x2a, stepsize=0x05, mute=0
  Amp-Out vals:  [0x1d 0x1d]
  Converter: stream=8, channel=2
  PCM:
    rates [0x5e0]: 44100 48000 88200 96000 192000
    bits [0xe]: 16 20 24
    formats [0x1]: PCM
  Power states:  D0 D1 D2 D3 EPSS
  Power: setting=D0, actual=D0


in your case , it is strange that balanced is set in eapd

EAPD 0x3: BALANCED EAPD


BTL controls the output configuration of a Pin Widget which has indicated support for balanced I/O (bit 6, Pin Capabilities Parameter).  When this bit is 0, the output drivers are configured in normal, single-ended mode; when this bit is 1, they are configured in balanced mode.  Note that in balanced mode, the Pin Widget has twice as many pins as it does in normal mode; i.e., a stereo Pin Widget in balanced mode has four signal pins (in addition to Vref pins).  However, in both modes it must appear to software as a single Pin Widget.  The additional pins must be reserved to this purpose; thus, in a configuration supporting BTL outputs the additional pins may not be enumerated as a separate Pin Widget. 


Node 0x24 [Pin Complex] wcaps 0x40050d: Stereo Amp-Out
  Control: name="Speaker Playback Switch", index=0, device=0
    ControlAmp: chs=3, dir=Out, idx=0, ofs=0
  Control: name="Speaker Phantom Jack", index=0, device=0
  Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-Out vals:  [0x80 0x80]
  Pincap 0x00010050: OUT EAPD Balanced
  EAPD 0x3: BALANCED EAPD
  Pin Default 0x901701f0: [Fixed] Speaker at Int N/A
    Conn = Analog, Color = Unknown
    DefAssociation = 0xf, Sequence = 0x0
    Misc = NO_PRESENCE
  Pin-ctls: 0x00:
  Power states:  D0 D1 D2 D3 EPSS
  Power: setting=D0, actual=D0
  Connection: 2
     0x14* 0x3e

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https://bugs.launchpad.net/bugs/1313904

Title:
  [W230SS, VIA VT1802, Green Headphone Out, Front] No sound after
  suspend/resume

Status in ALSA driver:
  Unknown
Status in “alsa-driver” package in Ubuntu:
  Confirmed

Bug description:
  No sound in headphones jack after suspend/resume.
  But sound in headphones jack is OK after cold boot.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu4
  Uname: Linux 3.15.0-031500rc2-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  mik        2139 F.... pulseaudio
   /dev/snd/controlC1:  mik        2139 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Mon Apr 28 23:20:59 2014
  InstallationDate: Installed on 2014-04-26 (2 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  PackageArchitecture: all
  SourcePackage: alsa-driver
  Symptom: audio
  Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH failed
  Symptom_Card: Вбудоване аудіо - HDA Intel PCH
  Symptom_DevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  mik        2139 F.... pulseaudio
   /dev/snd/controlC1:  mik        2139 F.... pulseaudio
  Symptom_Jack: Green Headphone Out, Front
  Symptom_Type: No sound at all
  Title: [W230SS, VIA VT1802, Green Headphone Out, Front] No sound at all
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 02/11/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 4.6.5
  dmi.board.asset.tag: Tag 12345
  dmi.board.name: W230SS
  dmi.board.vendor: Notebook
  dmi.board.version: Not Applicable
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: Notebook
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr4.6.5:bd02/11/2014:svnNotebook:pnW230SS:pvrNotApplicable:rvnNotebook:rnW230SS:rvrNotApplicable:cvnNotebook:ct9:cvrN/A:
  dmi.product.name: W230SS
  dmi.product.version: Not Applicable
  dmi.sys.vendor: Notebook
  mtime.conffile..etc.modprobe.d.alsa.base.conf: 2014-04-28T23:13:10.065027

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