I believe this bug was caused by this commit in the kernel: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/sound/usb/quirks- table.h?id=48827e1d6af58f219e89c7ec08dccbca28c7694e
A patch to fix the issue was committed to the kernel 11 days ago: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/sound/usb/quirks- table.h?id=4ee02e20893d2f9e951c7888f2284fa608ddaa35 It appears that the problem is that after the buggy original patch, the snd-usb-audio module takes over the entire webcam and prevents the uvcvideo driver from accessing it. No idea how long it will take Ubuntu to bring this patch into their kernels. In the meantime, I'm assuming you could work around it by doing something like this (with the webcam plugged in) to force the uvcvideo driver to load first: sudo modprobe -r snd-usb-audio sudo modprobe -r uvcvideo sudo modprobe uvcvideo sudo modprobe snd-usb-audio -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1956461 Title: Creative HD720p webcam doesn't work Status in linux package in Ubuntu: Confirmed Bug description: After installing kernel 5.4.0-92 the webcam Creative HD720p stop to be seen by the system. There is no /dev/vl4/ folder --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu27.21 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC2: piotr 3094 F.... pulseaudio /dev/snd/controlC0: piotr 3094 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: X-Cinnamon DistroRelease: Linux Mint 20.2 InstallationDate: Installed on 2020-06-07 (578 days ago) InstallationMedia: Linux Mint 19.3 "Tricia" - Release amd64 20191213 IwConfig: enp3s0 no wireless extensions. lo no wireless extensions. MachineType: Gigabyte Technology Co., Ltd. H67MA-USB3-B3 NonfreeKernelModules: nvidia_modeset nvidia Package: linux (not installed) ProcFB: 0 VESA VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-92-generic root=UUID=3bdaa7b0-765c-41ce-b67a-deeeabde9c42 ro quiet splash ProcVersionSignature: Ubuntu 5.4.0-92.103-generic 5.4.157 RelatedPackageVersions: linux-restricted-modules-5.4.0-92-generic N/A linux-backports-modules-5.4.0-92-generic N/A linux-firmware 1.187.24 RfKill: Tags: uma Uname: Linux 5.4.0-92-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers _MarkForUpload: True dmi.bios.date: 10/27/2011 dmi.bios.vendor: Award Software International, Inc. dmi.bios.version: F4 dmi.board.name: H67MA-USB3-B3 dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.type: 3 dmi.chassis.vendor: Gigabyte Technology Co., Ltd. dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF4:bd10/27/2011:svnGigabyteTechnologyCo.,Ltd.:pnH67MA-USB3-B3:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnH67MA-USB3-B3:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr: dmi.product.name: H67MA-USB3-B3 dmi.sys.vendor: Gigabyte Technology Co., Ltd. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1956461/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
