[alsa-devel] [PATCH] ALSA: hda - Fixing speaker noise on two thinkpad machines

[Hui Wang]

On 12/07/2015 11:06 PM, Takashi Iwai wrote:
> On Mon, 07 Dec 2015 16:01:02 +0100,
> Hui Wang wrote:
>> On 12/07/2015 10:47 PM, Takashi Iwai wrote:
>>> On Mon, 07 Dec 2015 15:38:05 +0100,
>>> Hui Wang wrote:
>>>> On 12/07/2015 10:35 PM, Takashi Iwai wrote:
>>>>> On Mon, 07 Dec 2015 15:31:52 +0100,
>>>>> Hui Wang wrote:
>>>>>> Disable the aamix can fix this problem.
>>>>> Which codec do these machines have?
>>>> Codec: Realtek ALC293
>>>> Address: 0
>>>> AFG Function Id: 0x1 (unsol 1)
>>>> Vendor Id: 0x10ec0293
>>> Hm, and only Thinkpads with this codec suffer?  I mean, there are lots
>>> of TPs with ALC292.  Please give more background.
>> Recently we enabled two thinkpad laptop models, both of them are based
>> on the Intel skylake platform, and both of them used alc293 to be the
>> analog audio codec. When the machine boot to the ubuntu desktop, there
>> will be a notification sound when greeter dialogue shows up, on these
>> two models, there is noise with the notification sound. By the way, we
>> have 3 SKUs for each model, all of them have this problem.
> See how more information you can give instead of a single line :)
>
>> After disable the analog audio loopback, the noise disappears.
>>
>> Codec: Realtek ALC293
>> Address: 0
>> AFG Function Id: 0x1 (unsol 1)
>> Vendor Id: 0x10ec0293
>> Subsystem Id: 0x17aa2233
>> Revision Id: 0x100003
>> No Modem Function Group found
>>
>>
>> Codec: Realtek ALC293
>> Address: 0
>> AFG Function Id: 0x1 (unsol 1)
>> Vendor Id: 0x10ec0293
>> Subsystem Id: 0x17aa504b
>> Revision Id: 0x100003
>> No Modem Function Group found
> My main question was rather whether this fix is specific to new
> models, and the old models likely don't need it.  Judging from your
> description, I guess so.
>
Yes, only latest thinkpad models with this codec have this problem, old 
models don't need this quirk.

I will add more information in the commit header and send the patch of V2.

Thanks for reviewing.


> Takashi
>
>>> Takashi
>>>
>>>>> Takashi
>>>>>
>>>>>> Cc: stable at vger.kernel.org
>>>>>> BugLink: https://bugs.launchpad.net/bugs/1523517
>>>>>> Signed-off-by: Hui Wang <hui.wang at canonical.com>
>>>>>> ---
>>>>>>     sound/pci/hda/patch_realtek.c | 9 +++++++++
>>>>>>     1 file changed, 9 insertions(+)
>>>>>>
>>>>>> diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
>>>>>> index ebc5362..49b1d36 100644
>>>>>> --- a/sound/pci/hda/patch_realtek.c
>>>>>> +++ b/sound/pci/hda/patch_realtek.c
>>>>>> @@ -4596,6 +4596,7 @@ enum {
>>>>>>     	ALC298_FIXUP_DELL1_MIC_NO_PRESENCE,
>>>>>>     	ALC275_FIXUP_DELL_XPS,
>>>>>>     	ALC256_FIXUP_DELL_XPS_13_HEADPHONE_NOISE,
>>>>>> +	ALC293_FIXUP_LENOVO_SPK_NOISE,
>>>>>>     };
>>>>>>     
>>>>>>     static const struct hda_fixup alc269_fixups[] = {
>>>>>> @@ -5187,6 +5188,12 @@ static const struct hda_fixup alc269_fixups[] = {
>>>>>>     		.chained = true,
>>>>>>     		.chain_id = ALC255_FIXUP_DELL1_MIC_NO_PRESENCE
>>>>>>     	},
>>>>>> +	[ALC293_FIXUP_LENOVO_SPK_NOISE] = {
>>>>>> +		.type = HDA_FIXUP_FUNC,
>>>>>> +		.v.func = alc_fixup_disable_aamix,
>>>>>> +		.chained = true,
>>>>>> +		.chain_id = ALC269_FIXUP_THINKPAD_ACPI
>>>>>> +	},
>>>>>>     };
>>>>>>     
>>>>>>     static const struct snd_pci_quirk alc269_fixup_tbl[] = {
>>>>>> @@ -5334,6 +5341,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
>>>>>>     	SND_PCI_QUIRK(0x17aa, 0x2215, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
>>>>>>     	SND_PCI_QUIRK(0x17aa, 0x2223, "ThinkPad T550", ALC292_FIXUP_TPT440_DOCK),
>>>>>>     	SND_PCI_QUIRK(0x17aa, 0x2226, "ThinkPad X250", ALC292_FIXUP_TPT440_DOCK),
>>>>>> +	SND_PCI_QUIRK(0x17aa, 0x2233, "Thinkpad", ALC293_FIXUP_LENOVO_SPK_NOISE),
>>>>>>     	SND_PCI_QUIRK(0x17aa, 0x3977, "IdeaPad S210", ALC283_FIXUP_INT_MIC),
>>>>>>     	SND_PCI_QUIRK(0x17aa, 0x3978, "IdeaPad Y410P", ALC269_FIXUP_NO_SHUTUP),
>>>>>>     	SND_PCI_QUIRK(0x17aa, 0x5013, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
>>>>>> @@ -5343,6 +5351,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
>>>>>>     	SND_PCI_QUIRK(0x17aa, 0x5034, "Thinkpad T450", ALC292_FIXUP_TPT440_DOCK),
>>>>>>     	SND_PCI_QUIRK(0x17aa, 0x5036, "Thinkpad T450s", ALC292_FIXUP_TPT440_DOCK),
>>>>>>     	SND_PCI_QUIRK(0x17aa, 0x503c, "Thinkpad L450", ALC292_FIXUP_TPT440_DOCK),
>>>>>> +	SND_PCI_QUIRK(0x17aa, 0x504b, "Thinkpad", ALC293_FIXUP_LENOVO_SPK_NOISE),
>>>>>>     	SND_PCI_QUIRK(0x17aa, 0x5109, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
>>>>>>     	SND_PCI_QUIRK(0x17aa, 0x3bf8, "Quanta FL1", ALC269_FIXUP_PCM_44K),
>>>>>>     	SND_PCI_QUIRK(0x17aa, 0x9e54, "LENOVO NB", ALC269_FIXUP_LENOVO_EAPD),
>>>>>> -- 
>>>>>> 1.9.1
>>>>>>
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