This happened to me on 18.04 and 20.04 both. I am seeing similar logs to the previous comments and one major problem is that the laptop would not even boot up if the webcam is plugged in. It gets stuck at boot time and until I remove the webcam, it keeps stuck in the same black screen.
If I keep it plugged and it doesn't respond, the entire system gets stuck until I remove it. I am using the a Hikvision U12 Full HD 1080P USB Webcam -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-signed-hwe-5.13 in Ubuntu. https://bugs.launchpad.net/bugs/1978416 Title: External USB webcam is not working Status in linux-signed-hwe-5.13 package in Ubuntu: Confirmed Bug description: Hello, I'm trying to connect Hikvision DS-U02 USB Webcam. It worked for once after trying multiple times, then it stopped working again. It worked when I connected it to a USB 2.0 port and now it's not working there as well. The device is showing up in lsbsb and dmseg, but not showing in "v4l2-ctl --list-devices". error in dmesg: [10856.771936] usb 3-4: new high-speed USB device number 13 using xhci_hcd [10856.929763] usb 3-4: New USB device found, idVendor=2bdf, idProduct=0280, bcdDevice=50.00 [10856.929772] usb 3-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [10856.929776] usb 3-4: Product: 1080P Web Camera [10856.929779] usb 3-4: Manufacturer: SN0002 [10856.929781] usb 3-4: SerialNumber: SN0002 [10856.930669] usb 3-4: Found UVC 1.00 device 1080P Web Camera (2bdf:0280) [10856.932435] uvcvideo 3-4:1.1: Failed to query (129) UVC probe control : -32 (exp. 26). [10856.932447] uvcvideo 3-4:1.1: Failed to initialize the device (-5). ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.13.0-48-generic 5.13.0-48.54~20.04.1 ProcVersionSignature: Ubuntu 5.13.0-48.54~20.04.1-generic 5.13.19 Uname: Linux 5.13.0-48-generic x86_64 NonfreeKernelModules: wl ApportVersion: 2.20.11-0ubuntu27.24 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Sun Jun 12 23:40:45 2022 InstallationDate: Installed on 2020-09-07 (643 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) SourcePackage: linux-signed-hwe-5.13 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-5.13/+bug/1978416/+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
