[alsa-devel] [PATCH] Fix for Lenovo B50-70 inverted internal microphone bug.

[Michał Wadowski]

On 14.05.2019 15:02, Takashi Iwai wrote:
> On Mon, 13 May 2019 23:25:36 +0200,
> MichaX2 Wadowski wrote:
>>
>> Add patch for realtek codec in Lenovo B50-70.
>> Bugzilla: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1524215
>>
>> Signed-off-by: Michał Wadowski <wadosm at gmail.com>
> 
> Thanks for the patch.
> 
> Actually this seems problematic: the added PCI SSID (17aa:3978) does
> already exist for Ideapad Y410P.  That is, we need to replace the
> entry, not just adding.  The existing quirk is only about the noise
> fix and it didn't seem help in a later kernel version, in anyway, so
> it should be OK to replace with the new quirk.

I also saw this conflict, but I didn't know what should I do with this.
If you say that existing fix for Ideapad Y410P is not necessary now, I replace this with Lenovo B50-70 fix.

> Also, I wonder whether the existing quirk
> ALC269_FIXUP_DMIC_THINKPAD_ACPI works on your device.  Could you check
> it?
> 
> 
> thanks,
> 
> Takashi

Yes, quirk ALC269_FIXUP_DMIC_THINKPAD_ACPI works fine on my device.
My laptop uses ALC233, so I created separated quirk, but finally it does the same thing.
Should I remove ALC233_FIXUP_INV_DMIC and replace it with ALC269_FIXUP_DMIC_THINKPAD_ACPI?

thanks,
Michał