[Bug 1888639] Re: Microsoft LifeCam Cinema reports "device descriptor read/all, error -71" on 20.04 with USB-C adaptor

2020-08-12 Thread Kai-Heng Feng
Do you know its USB id? -- 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

[Bug 1888639] Re: Microsoft LifeCam Cinema reports "device descriptor read/all, error -71" on 20.04 with USB-C adaptor

2020-08-12 Thread Robert Collins
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

[Bug 1888639] Re: Microsoft LifeCam Cinema reports "device descriptor read/all, error -71" on 20.04 with USB-C adaptor

2020-08-12 Thread Kai-Heng Feng
3-8 doesn't seem to be MS LifeCam Cinema: [ 2704.109836] usb 3-8: new full-speed USB device number 5 using xhci_hcd [ 2704.264737] usb 3-8: New USB device found, idVendor=413c, idProduct=b07c, bcdDevice= 0.00 [ 2704.264739] usb 3-8: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [