[alsa-devel] getting the sound to work on my asus m6s00v

[Christian Gleerup]

> Seem impedance measurement is not correct, mic should have higher impedance
> than headphone
> 
> https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/tree/Documentation/sound/alsa/HD-Audio.txt
> 
> You can disable it by hint trigger_sense=0
> 
> - trigger_sense (bool): indicates that the jack detection needs the
>   explicit call of AC_VERB_SET_PIN_SENSE verb
> 
> Node 0x14 [Pin Complex] wcaps 0x40018d: Stereo Amp-Out
>   Control: name="Master Playback Switch", index=0, device=0
>     ControlAmp: chs=3, dir=Out, idx=0, ofs=0
>   Control: name="Headphone Mic Phantom Jack", index=0, device=0
>   Amp-Out caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
>   Amp-Out vals:  [0x00 0x00]
>   Pincap 0x0000003f: IN OUT HP Detect Trigger ImpSense
>   Pin Default 0x0121411f: [Jack] HP Out at Ext Rear
>     Conn = 1/8, Color = Green
>     DefAssociation = 0x1, Sequence = 0xf
>     Misc = NO_PRESENCE
>   Pin-ctls: 0xc0: OUT HP
>   Unsolicited: tag=00, enabled=0
>   Connection: 1
>      0x0c
> 
> To get back headphone phantom jack if HP is really shared with speaker
> 
> Disable hp mic by hint  hp_mic_detect=0
> 
> - hp_mic_detect (bool): enable/disable the hp/mic shared input for a single
> built-in mic case; default true

not sure if this is correct, but it doesnt turn on sound
sudo modprobe snd-hda-intel options=trigger_sense=0