[Artful/linux-oem][PATCH v2] system can't detect external microphone with the codec alc274
hui.wang at canonical.com
Thu Nov 23 03:46:39 UTC 2017
This is v2, comparing to v1, I add SRU justification template here.
This patch is only for Artful and OEM kernel.
This patch is in v4.14-rc, so it will be in the Bionic kernel automatically.
Neither Xenial kernel nor Zesty kernel supports alc274 well yet, they lack lots
of functions like setting coefficient for eapd, headset mode, mic_in mode, ctia
and omtp mode. So only applying this patch is not sufficient to fix this bug.
There is a headset jack on this machine, after plugging the headset, the
headset-mic can't be detected, as a result we can't record sound with this
plugging the headset and checking the sound-setting to verify the headset-mic
shows up. And recording sound with this mic, it works well.
adding the pin definition to quirk table, then this machine will be applied
No, it does not change any existing functions.
Hui Wang (1):
ALSA: hda - fix headset mic problem for Dell machines with alc274
sound/pci/hda/patch_realtek.c | 5 +++++
1 file changed, 5 insertions(+)
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