My HUAWEI laptop is sometimes unable to identify the microphone on a four-segment headset
Applicable products： HUAWEI MateBook D 16(amd ryzen™ 5 4600h/8g/512g /amd radeon™ graphics、amd ryzen™ 5 4600h/16g/512g/amd radeon™ graphics、amd ryzen™ 7 4800h/16g/512g/amd radeon™ graphics、huawei matebook d 16 amd ryzen™ 5 4600h/16g/512gb/ uma/ non-touch、huawei matebook d 16 amd ryzen™ 7 4800h /16g/512gb/ uma/ non-touch)，HUAWEI MateBook B3-520(intel i5/8g/512g/uma/non-touch)，HUAWEI MateBook B3-510，HUAWEI MateBook 14(amd 2020 amd r5/16g/512g/touch、2021 intel i5/16g/512g/touch、amd 2020 amd r5/8g/512g/ uma/non-touch、2021 intel i7/16g/512g/touch、2021 intel i7/8g/512g/uma/touch、amd 2020 amd r5/16g/512g、amd 2020 amd r7/16g/512g/ uma/touch、2021 intel i7/16g/512g/ uma/touch、amd 2020 amd r7/16g/512g/touch、amd 2020 amd r5/8g/256g)，HUAWEI MateBook B3-410，HUAWEI MateBook 13(2021 intel i7/8g/512g/ uma/touch、2021 intel i7/16g/512g/ uma/ touch、2021 intel i5/16g/512g/touch、2021 intel i7/16g/512g/touch、2021 intel i5/16g/512g/ uma/touch、2021 intel i5/8g/512g/non-touch)，HUAWEI MateBook D 14(intel i5-10210u/8gb/512gb/uhd620、huawei matebook b3-420intel i5/8g/512g/uma/non-touch、hawei matebook d14 i5/16g/512g/uma、intel i7/16gb/512g、intel i5/8gb/256gb、intel i5/16gb/512gb、mx250 i5+8g+512g、2020 intel i5/8g/512g/uma/non-touch、huawei matebook b3-420intel i7/16g/512g/uma/non-touch、intel i3-10110u/8gb/256gb/uhd620、huawei matebook b3-420intel i3/8g/256g/uma/non-touch)，HUAWEI MateBook B3-420(intel i5/8g/512g/uma/non-touch、intel i3/8g/256g/uma/rj45/non-touch/tpm(国民))，HUAWEI MateBook B5-430(huawei matebook b5 430 intel i5/16g/512g/ uma/ non-touch、intel i5/8g/512g/ non-touch)，HUAWEI MateBook D 15(i5+8g+256g、2020 intel i3/8g/256g/uma/non-touch、2021、intel i5/16gb/512gb、2020 intel i5/8g/512g/uma/non-touch、2021款 intel i5/8g/512g/uma/non-touch、mx250 i5+8g+1tb+256g、intel i5-10210u/8gb/512gb/uhd620、huawei matebook b3-520intel i7/16g/512g/uma/non-touch、huawei matebook d15 amd 2021 r5/8g/512g/amd radeon™ graphics、huawei matebook b3-520intel i5/8g/512g/uma/non-touch、2021 i5/16g/512g/intel® iris® xe graphics、huawei matebook b3-520intel i5/8g/256g/uma/non-touch、intel i3-10110u/8gb/256gb/uhd620)
Applicable products：
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My HUAWEI laptop is sometimes unable to identify the microphone on a four-segment headset

Problem

When the user stops music playback, unplugs their sour-segment headset, leaves the laptop idle for some time, and then plugs in their headset once again, the laptop is sometimes unable to identify the headset. In addition, the headset's recording feature does not work.

Cause

Headset microphones are detected by EC. The accuracy of EC detection depends on whether the codec device detection pin has been powered on. When the device has been idle and is woken up, there is a delay while the codec device wakes up and the detection pin is powered on. If EC detection takes places before the pin has been powered on time, the laptop will not be able to correctly identify the headset microphone.

Solution

1. If this detection issue occurs, unplug your headset, and plug it in again after 5 seconds. Your headset microphone will then be detected normally.

2. This issue has been resolved by changing the time delay after headset insertion to 500 ms. Please stay tuned for driver updates from PC Manager.

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