Public bug reported: I have a MS LifeCam Cinema, which is known to work with Ubuntu in the past, though forum posts show it no longer working as of ~18.04.
I recently went back to Ubuntu as an actual desktop OS with 20.04 on a dell xps 13, which has a somewhat average webcam in the lid, so tried out the lifecam. It failed to negotiate USB settings properly: [622581.193592] usb 3-8: new high-speed USB device number 71 using xhci_hcd [622581.342507] usb 3-8: device descriptor read/all, error -71 [622581.469590] usb 3-8: new high-speed USB device number 72 using xhci_hcd [622581.597623] usb 3-8: device descriptor read/64, error -71 [622581.833660] usb 3-8: device descriptor read/64, error -71 [622581.941757] usb usb3-port8: attempt power cycle [622582.601580] usb 3-8: new high-speed USB device number 73 using xhci_hcd [622582.622469] usb 3-8: device descriptor read/8, error -71 [622582.750809] usb 3-8: device descriptor read/all, error -71 [622582.877604] usb 3-8: new high-speed USB device number 74 using xhci_hcd [622582.898543] usb 3-8: device descriptor read/8, error -71 [622583.027695] usb 3-8: unable to read config index 0 descriptor/all [622583.027700] usb 3-8: can't read configurations, error -71 [622583.027760] usb usb3-port8: unable to enumerate USB device I suspect it needs some USB quirks applied, since the device works perfectly fine on Windows still. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-40-generic 5.4.0-40.44 ProcVersionSignature: Ubuntu 5.4.0-40.44-generic 5.4.44 Uname: Linux 5.4.0-40-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.11-0ubuntu27.4 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Thu Jul 23 20:47:47 2020 InstallationDate: Installed on 2020-07-07 (15 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) MachineType: Dell Inc. XPS 13 9300 ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-40-generic root=/dev/mapper/vgubuntu-root ro quiet splash RelatedPackageVersions: linux-restricted-modules-5.4.0-40-generic N/A linux-backports-modules-5.4.0-40-generic N/A linux-firmware 1.187.1 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/08/2020 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.0.11 dmi.board.name: 0WX9VX dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.0.11:bd05/08/2020:svnDellInc.:pnXPS139300:pvr:rvnDellInc.:rn0WX9VX:rvrA00:cvnDellInc.:ct10:cvr: dmi.product.family: XPS dmi.product.name: XPS 13 9300 dmi.product.sku: 096D dmi.sys.vendor: Dell Inc. ** Affects: linux (Ubuntu) Importance: Undecided Status: Confirmed ** Tags: amd64 apport-bug focal wayland-session -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1888639 Title: Microsoft LifeCam Cinema reports "device descriptor read/all, error -71" on 20.04 with USB-C adaptor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1888639/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs