ACK/Cmnt: [SRU][F/G/U][PATCH 0/1] alsa/hda: The front Mic doesn't work on a HP machine

Stefan Bader stefan.bader at
Fri Oct 23 07:22:19 UTC 2020

On 23.10.20 04:52, Jeremy Szu wrote:
> BugLink:

The status of kernel tasks should not be new or incomplete when submitting for
SRU. And we should set an importance. For non-essential functionality impaired
this is medium. I would use medium in most cases, high only for essential
functionality impaired and critical for things that put ones data at risk. That
is for the kernel tasks, other teams view can be different.
> This fix is already applied to oem-5.6 kernel and it needs to be applied
> to focal, groovy and unstable.
> [Impact]
> When using a HP machine, after plugging the headset at front jack,
> there is no any input device shows.
> [Fix]
> The codec of the HP ZCentrol is alc671 and it needs to override the pin
> configuration to enable the headset mic.
> This patch is going to be merged by upstream, now backport it to
> F/G/U.
> [Test Case]
> Boot the system, plug a headset and check the gnome-control-center,
> the Mic is active in the UI, and record the sound, it could record
> the sound.
> [Regression Risk]
> Low, this patch is to add a platform specific quirk to override pin
> configuration and already tested in this HP machine.

Should be [Regression Potential]

Only if the same vendor/model numbers were re-used by hw that needs a different
setup, the microphone might stop working there.

> Jeremy Szu (1):
>   UBUNTU: SAUCE: ALSA: hda/realtek - The front Mic on a HP machine doesn't work
>  sound/pci/hda/patch_realtek.c | 1 +
>  1 file changed, 1 insertion(+)

Acked-by: Stefan Bader <stefan.bader at>

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