[alsa-devel] Auto mute mode

[David Henningsson]

Hi Hui,

I need to take care of a sick child today so I can't work.

The bug Kailang is talking about is https://bugs.launchpad.net/bugs/1535533

And he keeps talking about auto-mute mode, and I've tried to explain to 
him more than once that if muting the amp-out on node 0x14 does not 
cause the speaker to mute, then that's the real issue here. And that 
seems to be the case, but I can't double check because I don't have the 
hardware.

I don't understand Kailang's answers, because his English is too bad and 
contain very few words. Maybe you can talk to him in Chinese and getter 
better answers?

Thanks in advance,
   // David

On 2016-02-17 14:08, Hui Wang wrote:
> Hello Kailang,
>
> What machine do you use? I will try to find this machine in Canonical
> and investigate this issue on the machine.
>
> BTW, I did not meet this problem before.
>
> Regards,
> Hui.
>
>
> On 02/17/2016 05:41 PM, Takashi Iwai wrote:
>> On Wed, 17 Feb 2016 09:31:55 +0100,
>> Kailang wrote:
>>> Hi Takashi,
>>>
>>> I add the ALC225 for Dell headset mode supported.
>>> But it has the issue for speaker don't mute when headphone or headset
>>> was pluged.
>> Is alc_update_headset_mode() called when you plug/unplug the headphone
>> or the headset?  If yes, which value is set to new_headset_mode?
>>
>>> The issue is occur to Mic in pluged.
>>> When Mic in is pluged, auto mute mode will change to disable.
>>> But when plug headphone or headset into jack, auto mute mode still
>>> keep on disable.
>>> So, speaker will have output at the same time.
>> The same question applies.  This is a Dell machine with
>> ALC255_FIXUP_DELL1_MIC_NO_PRESENCE fix up.  The mic pin has no jack
>> detection but the detection is triggered only by the headset (HP)
>> pin.  All these imply likely that the detection of the headset mode
>> doesn't work properly.
>>
>> I haven't touched with these Dell quirks, but Canonical guys did it.
>> They should have a better clue.  Now Cc'ed.
>>
>>
>> Takashi
>>
>

-- 
David Henningsson, Canonical Ltd.
https://launchpad.net/~diwic