Since about 1,5 weeks I realized that the microphone in my webcam is not working anymore. Video works, it is only the microphone which is not detected anymore.
It was working before on my Leap 15.2 . I have that cam in the office as well as at home. Both show the same problem.

During that time I installed a device-mapper update.
No kernel or alsa update during that time.

The journal show the following messages when I plugin that cam:

Feb 02 09:49:15 virgo kernel: usb 1-2: new high-speed USB device number 6 using xhci_hcd
Feb 02 09:49:15 virgo kernel: usb 1-2: New USB device found, idVendor=046d, idProduct=0825, bcdDevice= 0.12
Feb 02 09:49:15 virgo kernel: usb 1-2: New USB device strings: Mfr=0, Product=0, SerialNumber=2
Feb 02 09:49:15 virgo kernel: usb 1-2: SerialNumber: D9A42BC0
Feb 02 09:49:15 virgo mtp-probe[32458]: checking bus 1, device 6: "/sys/devices/pci0000:00/0000:00:14.0/usb1/1-2"
Feb 02 09:49:15 virgo mtp-probe[32458]: bus: 1, device: 6 was not an MTP device
Feb 02 09:49:15 virgo kernel: mc: Linux media interface: v0.10
Feb 02 09:49:15 virgo kernel: videodev: Linux video capture interface: v2.00
Feb 02 09:49:16 virgo kernel: usb 1-2: set resolution quirk: cval->res = 384
Feb 02 09:49:16 virgo kernel: uvcvideo: Found UVC 1.00 device <unnamed> (046d:0825)
Feb 02 09:49:16 virgo kernel: usbcore: registered new interface driver snd-usb-audio
Feb 02 09:49:16 virgo kernel: input: UVC Camera (046d:0825) as /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2:1.0/input/input17
Feb 02 09:49:16 virgo kernel: usbcore: registered new interface driver uvcvideo
Feb 02 09:49:16 virgo kernel: USB Video Class driver (1.1.1)
Feb 02 09:49:16 virgo systemd[4340]: Reached target Sound Card.
Feb 02 09:49:16 virgo pulseaudio[4566]: E: [pulseaudio] module-alsa-card.c: Failed to find a working profile.
Feb 02 09:49:16 virgo pulseaudio[4566]: E: [pulseaudio] module.c: Failed to load module "module-alsa-card" (argument: "device_id="1" name="usb-046d_0825_D9A42BC0-02" card_name="alsa_card.usb-046d_0825_D9A42BC0-02" namereg_fail=false tsched=yes fixed_latency_range=no ignore_dB=no deferred_volume=yes use_ucm=yes avoid_resampling=no card_properties="module-udev-detect.discovered=1""): initialization failed.
Feb 02 09:49:16 virgo pulseaudio[4566]: E: [pulseaudio] module-alsa-card.c: Failed to find a working profile.
Feb 02 09:49:16 virgo pulseaudio[4566]: E: [pulseaudio] module.c: Failed to load module "module-alsa-card" (argument: "device_id="1" name="usb-046d_0825_D9A42BC0-02" card_name="alsa_card.usb-046d_0825_D9A42BC0-02" namereg_fail=false tsched=yes fixed_latency_range=no ignore_dB=no deferred_volume=yes use_ucm=yes avoid_resampling=no card_properties="module-udev-detect.discovered=1""): initialization failed.
Feb 02 09:49:16 virgo pulseaudio[4566]: E: [pulseaudio] module-alsa-card.c: Failed to find a working profile.
Feb 02 09:49:16 virgo pulseaudio[4566]: E: [pulseaudio] module.c: Failed to load module "module-alsa-card" (argument: "device_id="1" name="usb-046d_0825_D9A42BC0-02" card_name="alsa_card.usb-046d_0825_D9A42BC0-02" namereg_fail=false tsched=yes fixed_latency_range=no ignore_dB=no deferred_volume=yes use_ucm=yes avoid_resampling=no card_properties="module-udev-detect.discovered=1""): initialization failed.
Feb 02 09:49:16 virgo pulseaudio[4566]: E: [pulseaudio] module-alsa-card.c: Failed to find a working profile.
Feb 02 09:49:16 virgo pulseaudio[4566]: E: [pulseaudio] module.c: Failed to load module "module-alsa-card" (argument: "device_id="1" name="usb-046d_0825_D9A42BC0-02" card_name="alsa_card.usb-046d_0825_D9A42BC0-02" namereg_fail=false tsched=yes fixed_latency_range=no ignore_dB=no deferred_volume=yes use_ucm=yes avoid_resampling=no card_properties="module-udev-detect.discovered=1""): initialization failed.
Feb 02 09:49:16 virgo pulseaudio[4566]: E: [pulseaudio] module-alsa-card.c: Failed to find a working profile.
Feb 02 09:49:16 virgo pulseaudio[4566]: E: [pulseaudio] module.c: Failed to load module "module-alsa-card" (argument: "device_id="1" name="usb-046d_0825_D9A42BC0-02" card_name="alsa_card.usb-046d_0825_D9A42BC0-02" namereg_fail=false tsched=yes fixed_latency_range=no ignore_dB=no deferred_volume=yes use_ucm=yes avoid_resampling=no card_properties="module-udev-detect.discovered=1""): initialization failed.
Feb 02 09:49:16 virgo pulseaudio[4566]: E: [pulseaudio] module-alsa-card.c: Failed to find a working profile.
Feb 02 09:49:16 virgo pulseaudio[4566]: E: [pulseaudio] module.c: Failed to load module "module-alsa-card" (argument: "device_id="1" name="usb-046d_0825_D9A42BC0-02" card_name="alsa_card.usb-046d_0825_D9A42BC0-02" namereg_fail=false tsched=yes fixed_latency_range=no ignore_dB=no deferred_volume=yes use_ucm=yes avoid_resampling=no card_properties="module-udev-detect.discovered=1""): initialization failed.
Feb 02 09:49:16 virgo pulseaudio[4566]: W: [pulseaudio] module-udev-detect.c: Tried to configure /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2:1.2/sound/card1 (alsa_card.usb-046d_0825_D9A42BC0-02) more often than 5 times in 10s

$> rpm -q alsa kernel-default device-mapper pulseaudio
alsa-1.1.5-lp152.9.4.1.x86_64
kernel-default-5.3.18-lp152.57.1.x86_64
kernel-default-5.3.18-lp152.60.1.x86_64
device-mapper-1.02.163-lp152.7.12.1.x86_64
pulseaudio-13.0-lp152.2.3.x86_64
$> uname -a
Linux virgo 5.3.18-lp152.60-default #1 SMP Tue Jan 12 23:10:31 UTC 2021 (9898712) x86_64 x86_64 x86_64 GNU/Linux