I cannot file a bug via ubuntu-bug linux, since I'm running a mainline kernel (4.6.3-040603-generic) to solve another issue related to USB 2/3 transition.
These messages show up in kern.log only when webcam is connected. Video works fine, but microphone does not. lsusb output of offending device: Bus 003 Device 013: ID 046d:081b Logitech, Inc. Webcam C310 /var/log/kern.log: kernel: [ 10.472856] usb 3-11: 3:1: cannot get freq at ep 0x86 kernel: [ 10.473044] usb 3-11: 3:2: cannot set freq 24000 to ep 0x86 kernel: [ 10.473211] usb 3-11: 3:3: cannot set freq 32000 to ep 0x86 kernel: [ 10.473379] usb 3-11: 3:4: cannot set freq 48000 to ep 0x86 kernel: [ 10.473559] usb 3-11: 5:2: cannot get min/max values for control 2 (id 5) kernel: [ 10.473764] usbcore: registered new interface driver snd-usb-audio kernel: [ 10.760798] usb 3-11: new high-speed USB device number 13 using xhci_hcd kernel: [ 11.162191] usb 3-11: New USB device found, idVendor=046d, idProduct=081b kernel: [ 11.162193] usb 3-11: New USB device strings: Mfr=0, Product=0, SerialNumber=2 kernel: [ 11.162194] usb 3-11: SerialNumber: 9E927F10 kernel: [ 11.162427] uvcvideo: Found UVC 1.00 device <unnamed> (046d:081b) kernel: [ 11.176801] uvcvideo 3-11:1.0: Entity type for entity Extension 4 was not initialized! kernel: [ 11.176805] uvcvideo 3-11:1.0: Entity type for entity Extension 6 was not initialized! kernel: [ 11.176807] uvcvideo 3-11:1.0: Entity type for entity Extension 7 was not initialized! kernel: [ 11.176808] uvcvideo 3-11:1.0: Entity type for entity Processing 2 was not initialized! kernel: [ 11.176810] uvcvideo 3-11:1.0: Entity type for entity Extension 3 was not initialized! kernel: [ 11.176812] uvcvideo 3-11:1.0: Entity type for entity Camera 1 was not initialized! kernel: [ 11.176880] input: UVC Camera (046d:081b) as /devices/pci0000:00/0000:00:14.0/usb3/3-11/3-11:1.0/input/input25 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1366468 Title: 046d:0990 cannot set freq 16000 to exp 0x86-: Errors due to logitech Quickcam To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1366468/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
