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[berend <berend@xxxxxxxxx>]

Running with: Linux quadrio.nederware.nl 3.15.0-031500rc1-generic
#201404131835 SMP Sun Apr 13 22:36:23 UTC 2014 x86_64 x86_64 x86_64
GNU/Linux

But didn't help.

1. I first upgraded to latest 14.04, then rebooted. No webcam found after reboot. 
2. Then installed the new kernel, still no webcam found. 
3. I then turned off the computer, waited a while, and turned it on. Skype recognised webcam for a few milliseconds, then video crashed.

After the crash I rebooted, webcam not found. Turned it off, waited, and
on again, wecbcam found. It seems that after a crash I need to physicall
turn off the computer before lsusb sees the webcam.

This is what it sees after I've turned off the computer:

  Bus 002 Device 004: ID 17ef:480c Lenovo Integrated Webcam

That device simply is not found after the crash.

Messages in /var/log/syslog when the webcam was found for a few
millisecs:


Apr 18 11:42:14 quadrio kernel: [  285.124490] usb 2-4: USB disconnect, device number 4
Apr 18 11:42:14 quadrio kernel: [  285.484046] usb 7-2: new full-speed USB device number 2 using uhci_hcd
Apr 18 11:42:14 quadrio kernel: [  285.604111] usb 7-2: device descriptor read/64, error -71
Apr 18 11:42:14 quadrio kernel: [  285.828075] usb 7-2: device descriptor read/64, error -71
Apr 18 11:42:15 quadrio kernel: [  286.248105] usb 7-2: new full-speed USB device number 3 using uhci_hcd
Apr 18 11:42:15 quadrio kernel: [  286.368126] usb 7-2: device descriptor read/64, error -71
Apr 18 11:42:15 quadrio kernel: [  286.592101] usb 7-2: device descriptor read/64, error -71
Apr 18 11:42:15 quadrio kernel: [  286.808135] usb 7-2: new full-speed USB device number 4 using uhci_hcd
Apr 18 11:42:16 quadrio kernel: [  287.224074] usb 7-2: device not accepting address 4, error -71
Apr 18 11:42:16 quadrio kernel: [  287.336094] usb 7-2: new full-speed USB device number 5 using uhci_hcd
Apr 18 11:42:16 quadrio kernel: [  287.748043] usb 7-2: device not accepting address 5, error -71
Apr 18 11:42:16 quadrio kernel: [  287.748083] hub 7-0:1.0: unable to enumerate USB device on port 2


** Tags added: kernel-bug-exists-upstream

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https://bugs.launchpad.net/bugs/1308311

Title:
  uvcvideo kernel module crash

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Symptom: video works once, but crashes during use, or at second use.
  Happened on 32-bit precise too.

  /var/log/syslog startup messages:

  Apr 16 09:46:46 quadrio kernel: [    6.181754] input: UVC Camera (17ef:480c) as /devices/pci0000:00/0000:00:1d.7/usb2/2-4/2-4:1.0/input/input16
  Apr 16 09:46:46 quadrio kernel: [    6.183111] usbcore: registered new interface driver uvcvideo

  When it crashes:

  Apr 16 14:26:39 quadrio kernel: [16798.368345] uvcvideo: Failed to query (SET_CUR) UVC control 3 on unit 1: -110 (exp. 1).
  Apr 16 14:26:44 quadrio kernel: [16803.368274] uvcvideo: Failed to set UVC probe control : -110 (exp. 26).
  Apr 16 14:26:49 quadrio kernel: [16808.368322] uvcvideo: Failed to set UVC probe control : -110 (exp. 26).
  Apr 16 14:26:54 quadrio kernel: [16813.368402] uvcvideo: Failed to set UVC commit control : -110 (exp. 26).
  Apr 16 14:26:59 quadrio kernel: [16818.368341] uvcvideo: Failed to set UVC probe control : -110 (exp. 26).
  Apr 16 14:27:04 quadrio kernel: [16823.368421] uvcvideo: Failed to set UVC probe control : -110 (exp. 26).
  Apr 16 14:27:09 quadrio kernel: [16828.368336] uvcvideo: Failed to set UVC commit control : -110 (exp. 26).
  Apr 16 14:27:14 quadrio kernel: [16833.368392] uvcvideo: Failed to set UVC probe control : -110 (exp. 26).
  Apr 16 14:27:19 quadrio kernel: [16838.368326] uvcvideo: Failed to set UVC probe control : -110 (exp. 26).
  Apr 16 14:27:24 quadrio kernel: [16843.368272] uvcvideo: Failed to set UVC commit control : -110 (exp. 26).

  Does not start working even after an rmmod/modprobe of this module.
  Need a reboot.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-extra-3.13.0-24-generic 3.13.0-24.46
  ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
  Uname: Linux 3.13.0-24-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.14.1-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  berend     3658 F.... pulseaudio
   /dev/snd/pcmC0D0c:   berend     3658 F...m pulseaudio
   /dev/snd/pcmC0D0p:   berend     3658 F...m pulseaudio
  CurrentDesktop: Unity
  Date: Wed Apr 16 14:42:24 2014
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2014-04-01 (15 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Beta amd64 (20140326)
  MachineType: LENOVO 2757CTO
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcFB:
   
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-24-generic root=UUID=52ddc899-ca26-4fe9-b2ba-e7562258b42c ro quiet splash
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-24-generic N/A
   linux-backports-modules-3.13.0-24-generic  N/A
   linux-firmware                             1.127
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 11/27/2008
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 7ZET71WW (1.54 )
  dmi.board.name: 2757CTO
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvr7ZET71WW(1.54):bd11/27/2008:svnLENOVO:pn2757CTO:pvrThinkPadW700:rvnLENOVO:rn2757CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 2757CTO
  dmi.product.version: ThinkPad W700
  dmi.sys.vendor: LENOVO

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