#StackBounty: #logitech Logitech C922 microphone not working in Ubuntu 20.04

Bounty: 50

I have a Logitech C922 webcam which works but the microphone doesn’t work. Settings does detect the microphone but I still can’t get any sound and the mic bars don’t move.

I tested the device on a windows laptop and it works fine.

My mainboard is an ASUS ROG Strix z-490i

The system controls do detect the microphone. It is not suspended.

Here is the output from pcmd list-sources

index: 44
    name: <alsa_input.usb-046d_C922_Pro_Stream_Webcam_57E99BBF-02.analog-stereo>
    driver: <module-alsa-card.c>
    flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
    state: RUNNING
    suspend cause: (none)
    priority: 9049
    volume: front-left: 56928 /  87% / -3.67 dB,   front-right: 56928 /  87% / -3.67 dB
            balance 0.00
    base volume: 9619 /  15% / -50.00 dB
    volume steps: 65537
    muted: no
    current latency: 0.00 ms
    max rewind: 0 KiB
    sample spec: s16le 2ch 32000Hz
    channel map: front-left,front-right
                 Stereo
    used by: 1
    linked by: 1
    configured latency: 40.00 ms; range is 0.50 .. 2000.00 ms
    card: 4 <alsa_card.usb-046d_C922_Pro_Stream_Webcam_57E99BBF-02>
    module: 34
    properties:
        alsa.resolution_bits = "16"
        device.api = "alsa"
        device.class = "sound"
        alsa.class = "generic"
        alsa.subclass = "generic-mix"
        alsa.name = "USB Audio"
        alsa.id = "USB Audio"
        alsa.subdevice = "0"
        alsa.subdevice_name = "subdevice #0"
        alsa.device = "0"
        alsa.card = "1"
        alsa.card_name = "C922 Pro Stream Webcam"
        alsa.long_card_name = "C922 Pro Stream Webcam at usb-0000:00:14.0-9, high speed"
        alsa.driver_name = "snd_usb_audio"
        device.bus_path = "pci-0000:00:14.0-usb-0:9:1.2"
        sysfs.path = "/devices/pci0000:00/0000:00:14.0/usb1/1-9/1-9:1.2/sound/card1"
        udev.id = "usb-046d_C922_Pro_Stream_Webcam_57E99BBF-02"
        device.bus = "usb"
        device.vendor.id = "046d"
        device.vendor.name = "Logitech, Inc."
        device.product.id = "085c"
        device.product.name = "C922 Pro Stream Webcam"
        device.serial = "046d_C922_Pro_Stream_Webcam_57E99BBF"
        device.form_factor = "webcam"
        device.string = "front:1"
        device.buffering.buffer_size = "256000"
        device.buffering.fragment_size = "128000"
        device.access_mode = "mmap+timer"
        device.profile.name = "analog-stereo"
        device.profile.description = "Analogue Stereo"
        device.description = "C922 Pro Stream Webcam Analogue Stereo"
        module-udev-detect.discovered = "1"
        device.icon_name = "camera-web-usb"
    ports:
        analog-input-mic: Microphone (priority 8700, latency offset 0 usec, available: unknown)
            properties:
                device.icon_name = "audio-input-microphone"
    active port: <analog-input-mic>


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