apport information

** Attachment added: "WifiSyslog.txt"

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  Logitech webcam microphone not working

Status in linux package in Ubuntu:

Bug description:
  I have a Logitech C922 Pro webcam which works perfectly on an Ubuntu
  19.10 installation, but when plugged into my Ubuntu 20.04 system (with
  all released updates), there is no sound from the microphone, either
  as digital input or as "microphone" This has been tested with two
  identical webcams (my CEO has one too) and on three Ubuntu
  installations plus the 19.10 where the webcam still works as expected.

  dmesg output on plugging in the webcam:

  [ 1123.265098] usb 1-8: new high-speed USB device number 14 using xhci_hcd
  [ 1123.415363] usb 1-8: New USB device found, idVendor=046d, idProduct=085c, 
bcdDevice= 0.16
  [ 1123.415369] usb 1-8: New USB device strings: Mfr=0, Product=2, 
  [ 1123.415372] usb 1-8: Product: C922 Pro Stream Webcam
  [ 1123.415375] usb 1-8: SerialNumber: 16FFBB9F
  [ 1123.416467] uvcvideo: Found UVC 1.00 device C922 Pro Stream Webcam 
  [ 1123.418343] uvcvideo 1-8:1.0: Entity type for entity Processing 3 was not 
  [ 1123.418347] uvcvideo 1-8:1.0: Entity type for entity Extension 6 was not 
  [ 1123.418350] uvcvideo 1-8:1.0: Entity type for entity Extension 12 was not 
  [ 1123.418353] uvcvideo 1-8:1.0: Entity type for entity Camera 1 was not 
  [ 1123.418356] uvcvideo 1-8:1.0: Entity type for entity Extension 8 was not 
  [ 1123.418359] uvcvideo 1-8:1.0: Entity type for entity Extension 9 was not 
  [ 1123.418362] uvcvideo 1-8:1.0: Entity type for entity Extension 10 was not 
  [ 1123.418364] uvcvideo 1-8:1.0: Entity type for entity Extension 11 was not 
  [ 1123.418811] input: C922 Pro Stream Webcam as 
  [ 1147.505572] usb 1-8: reset high-speed USB device number 14 using xhci_hcd

  lsusb output:

  Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
  Bus 001 Device 004: ID 0bda:0153 Realtek Semiconductor Corp. 3-in-1 
(SD/SDHC/SDXC) Card Reader
  Bus 001 Device 014: ID 046d:085c Logitech, Inc. C922 Pro Stream Webcam
  Bus 001 Device 003: ID 04ca:006d Lite-On Technology Corp. USB Device
  Bus 001 Device 005: ID 8087:0aa7 Intel Corp. 
  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

  lsmod | grep usb_audio
  snd_usb_audio         262144  1
  snd_usbmidi_lib        36864  1 snd_usb_audio
  snd_hwdep              20480  2 snd_usb_audio,snd_hda_codec
  snd_pcm               106496  5 
  mc                     53248  5 
  snd                    90112  29 

  Any ideas greatly appreciated
  ProblemType: Bug
  ApportVersion: 2.20.11-0ubuntu27.3
  Architecture: amd64
   /dev/snd/controlC2:  simon      1772 F.... pulseaudio
   /dev/snd/controlC1:  simon      1772 F.... pulseaudio
   /dev/snd/controlC0:  simon      1772 F.... pulseaudio
  CasperMD5CheckResult: skip
  CurrentDesktop: ubuntu:GNOME
  DistroRelease: Ubuntu 20.04
  InstallationDate: Installed on 2020-04-27 (60 days ago)
  InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
  MachineType: Acer Aspire GX-781
  NonfreeKernelModules: nvidia_modeset nvidia
  Package: linux (not installed)
  ProcFB: 0 EFI VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-39-generic 
root=UUID=8285b241-2b1c-4a1f-bd2e-ce5cac7a2938 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 5.4.0-39.43-generic 5.4.41
   linux-restricted-modules-5.4.0-39-generic N/A
   linux-backports-modules-5.4.0-39-generic  N/A
   linux-firmware                            1.187
  Tags:  focal
  Uname: Linux 5.4.0-39-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom chrome-remote-desktop dip lpadmin lxd plugdev 
sambashare sudo
  _MarkForUpload: True 01/09/2017
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: R02-A1 Aspire GX-781(KBL)
  dmi.board.vendor: Acer
  dmi.chassis.type: 3
  dmi.chassis.vendor: Acer
dmi:bvnAmericanMegatrendsInc.:bvrR02-A1:bd01/09/2017:svnAcer:pnAspireGX-781:pvr:rvnAcer:rnAspireGX-781(KBL):rvr:cvnAcer:ct3:cvr: Aspire G Aspire GX-781
  dmi.sys.vendor: Acer

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