That was when the USB-power/HDMI/DP adapter was plugged in the other side. The
relevant log entries from lower down are:
```
[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
```
** Changed in: linux (Ubuntu)
Status: Incomplete => New
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https://bugs.launchpad.net/bugs/1888639
Title:
Microsoft LifeCam Cinema reports "device descriptor read/all, error
-71" on 20.04 with USB-C adaptor
Status in linux package in Ubuntu:
Confirmed
Bug description:
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.
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