APPLIED Re: [SRU][OEM-5.6][PATCH 0/1] alsa/hda: mic doesn't work on a HP AIO machine

Timo Aaltonen tjaalton at
Tue Oct 6 13:19:30 UTC 2020

On 30.9.2020 4.08, Hui Wang wrote:
> BugLink:
> This fix is only for oem-5.6 kernel, other kernels will merge this
> patch with stable update. Our oem project needs this patch to be merged
> ASAP, and I am going to have a 8 days public holiday, so sent this SRU.
> [Impact]
> We had a HP AIO machine, after plugging the headset and trying
> to record sound from Mic, but can't record any sound.
> [Fix]
> Set the auto detect mode for Mic, this patch is going to be merged
> by upstream, now backport it to oem-5.6 kernel.
> [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]
> This patch could introduce audio jack detection problem on this HP
> machine, but the possibility is very low, since we have tested it
> on 3 SKUs of this machine, all worked well. And this patch only affects
> this HP machine since it specifies the subsystem id of this machine.
> Hui Wang (1):
>    UBUNTU: SAUCE: ALSA: hda/realtek - set mic to auto detect on a HP AIO
>      machine
>   sound/pci/hda/patch_realtek.c | 11 +++++++++++
>   1 file changed, 11 insertions(+)

applied to oem-5.6, thanks


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