[alsa-devel] ALC700 headphone no sound issue

[Takashi Iwai]

On Wed, 05 Dec 2018 09:18:52 +0100,
Kailang wrote:
> 
> Hi Takashi,
> 
> In Intel ENG board with ALC700. It had headphone no sound issue.
> If it plugged headphone or headset into the jack, then do the reboot, it will have a chance to cause headphone no sound.
> It just need to run the headphone mode procedure after boot time.
> The issue will be fixed.
> It also suitable for ALC234 ALC274 and ALC294.

Does this correspond to the HDA_FIXUP_ACT_INIT part of the patch?

BTW, some changes in the patch don't look good, unfortunately.
Namely...

> +static void alc_headset_btn_unsol_event(struct hda_codec *codec,
> +				unsigned int res)
> +{
> +	struct hda_jack_tbl *jack;
> +	int report = 0;
> +
> +	jack = snd_hda_jack_tbl_get(codec, 0x55);
> +	report = SND_JACK_HEADSET;
> +	if (jack->nid == 0x55) {

Here essentially means that it always goes to this if-path, because
jack object is exactly what you queried for NID 0x55.

> +		if (res & (7 << 13))
> +			report |= SND_JACK_BTN_0;
....
> +		report |= report & jack->type;
> +		snd_jack_report(jack->jack, report);

So eventually snd_jack_report() is always invoked at each unsol event
no matter what event actually is.


thanks,

Takashi