Public bug reported:

After doing a kernel upgrade on my Ubuntu 12.04 LTS system from 3.2.0-63
to 3.2.0-64, USB 3.0 cameras have stopped working properly. I use the
application guvcview to preview the cameras. The initial preview when
starting the application works fine. But when trying to change the
resolution of preview, the application reports an error continuously for
each frame.

Description:    Ubuntu 12.04.4 LTS
Release:        12.04

guvcview:
  Installed: 1.5.3-0ubuntu1
  Candidate: 1.5.3-0ubuntu1
  Version table:
 *** 1.5.3-0ubuntu1 0
        500 http://archive.ubuntu.com/ubuntu/ precise/universe i386 Packages
        100 /var/lib/dpkg/status

cat /proc/version_signature 
Ubuntu 3.2.0-64.97-generic-pae 3.2.59

Steps to reproduce:
$ sudo apt-get update && sudo apt-get dist-upgrade && sudo apt-get install 
guvcview -y
$ sync
$ sudo reboot


Connect any USB3.0 superspeed camera available on the market to an USB 3.0 port 
on your system.
I am using an e-con system's See3CAM_80 USB 3.0 camera.


Now start the application guvcview from a terminal window 
$ guvcview

The application starts up showing the GUI for controls and another
window showing the preview. Now try to change the resolution of the
camera by using the "resolution" combo box present in Video tab of the
application controls window.

What I expected to happen :
The preview resolution should have changed to the selected resolution.

What happened instead :
The preview window becomes black and no more frames are obtained from the 
camera. The terminal window shows the following errors repeatedly.
libv4l2: error dequeuing buf: Input/output error
VIDIOC_DQBUF - Unable to dequeue buffer : Input/output error
Error grabbing image 
libv4l2: error dequeuing buf: Input/output error
VIDIOC_DQBUF - Unable to dequeue buffer : Input/output error
Error grabbing image 
libv4l2: error dequeuing buf: Input/output error
VIDIOC_DQBUF - Unable to dequeue buffer : Input/output error
Error grabbing image 
libv4l2: error dequeuing buf: Input/output error
VIDIOC_DQBUF - Unable to dequeue buffer : Input/output error
Error grabbing image 
libv4l2: error dequeuing buf: Invalid argument
VIDIOC_DQBUF - Unable to dequeue buffer : Invalid argument
Error grabbing image 
libv4l2: error dequeuing buf: Invalid argument
VIDIOC_DQBUF - Unable to dequeue buffer : Invalid argument
Error grabbing image 
libv4l2: error dequeuing buf: Invalid argument
VIDIOC_DQBUF - Unable to dequeue buffer : Invalid argument
Error grabbing image 
libv4l2: error dequeuing buf: Invalid argument
VIDIOC_DQBUF - Unable to dequeue buffer : Invalid argument
Error grabbing image 
libv4l2: error dequeuing buf: Invalid argument
VIDIOC_DQBUF - Unable to dequeue buffer : Invalid argument
Error grabbing image 
libv4l2: error dequeuing buf: Invalid argument
VIDIOC_DQBUF - Unable to dequeue buffer : Invalid argument
Error grabbing image 
libv4l2: error dequeuing buf: Invalid argument
VIDIOC_DQBUF - Unable to dequeue buffer : Invalid argument
Error grabbing image 
libv4l2: error dequeuing buf: Invalid argument
VIDIOC_DQBUF - Unable to dequeue buffer : Invalid argument
Error grabbing image 
libv4l2: error dequeuing buf: Invalid argument
VIDIOC_DQBUF - Unable to dequeue buffer : Invalid argument
Error grabbing image 
libv4l2: error dequeuing buf: Invalid argument
VIDIOC_DQBUF - Unable to dequeue buffer : Invalid argument
Error grabbing image 
libv4l2: error dequeuing buf: Invalid argument
VIDIOC_DQBUF - Unable to dequeue buffer : Invalid argument
Error grabbing image 
libv4l2: error dequeuing buf: Invalid argument
VIDIOC_DQBUF - Unable to dequeue buffer : Invalid argument
Error grabbing image 
libv4l2: error dequeuing buf: Invalid argument
VIDIOC_DQBUF - Unable to dequeue buffer : Invalid argument
Error grabbing image 
libv4l2: error dequeuing buf: Invalid argument
VIDIOC_DQBUF - Unable to dequeue buffer : Invalid argument
Error grabbing image 
libv4l2: error dequeuing buf: Invalid argument
VIDIOC_DQBUF - Unable to dequeue buffer : Invalid argument
Error grabbing image 
libv4l2: error dequeuing buf: Invalid argument
VIDIOC_DQBUF - Unable to dequeue buffer : Invalid argument
Error grabbing image 
libv4l2: error dequeuing buf: Invalid argument
VIDIOC_DQBUF - Unable to dequeue buffer : Invalid argument
Error grabbing image 
libv4l2: error dequeuing buf: Invalid argument
VIDIOC_DQBUF - Unable to dequeue buffer : Invalid argument
Error grabbing image 
libv4l2: error dequeuing buf: Invalid argument
VIDIOC_DQBUF - Unable to dequeue buffer : Invalid argument
Error grabbing image 
libv4l2: error dequeuing buf: Invalid argument
VIDIOC_DQBUF - Unable to dequeue buffer : Invalid argument
Error grabbing image 
libv4l2: error dequeuing buf: Invalid argument
VIDIOC_DQBUF - Unable to dequeue buffer : Invalid argument
Error grabbing image 
libv4l2: error dequeuing buf: Invalid argument
VIDIOC_DQBUF - Unable to dequeue buffer : Invalid argument
Error grabbing image 
 and so on...


Restarting the application also doesnt work. Only after disconnecting and 
reconnecting the camera, I am able to see the preview properly. 

The workaround is to revert to kernel 3.2.0-63. After that the
application is working fine and switching to other resolutions also work
properly.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-64-generic-pae 3.2.0-64.97
ProcVersionSignature: Ubuntu 3.2.0-64.97-generic-pae 3.2.59
Uname: Linux 3.2.0-64-generic-pae i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu17.6
Architecture: i386
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  dilip_kumar   2171 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'PCH'/'HDA Intel PCH at 0xf7d10000 irq 46'
   Mixer name   : 'Intel PantherPoint HDMI'
   Components   : 'HDA:10ec0662,10280576,00100300 
HDA:80862806,10280576,00100000'
   Controls      : 42
   Simple ctrls  : 21
Date: Fri Jun 27 13:20:45 2014
HibernationDevice: RESUME=UUID=34d66c70-81e6-4651-aa2a-8d45e4f4d372
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
MachineType: Dell Inc. Vostro 270s
MarkForUpload: True
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-64-generic-pae 
root=UUID=62503b1b-36fc-4afd-b26a-3981934e72a2 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.2.0-64-generic-pae N/A
 linux-backports-modules-3.2.0-64-generic-pae  N/A
 linux-firmware                                1.79.16
RfKill:
 0: phy0: Wireless LAN
        Soft blocked: yes
        Hard blocked: no
SourcePackage: linux
StagingDrivers: mei
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/14/2013
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A11
dmi.board.name: 0XFWHV
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 3
dmi.chassis.vendor: Dell Inc.
dmi.modalias: 
dmi:bvnDellInc.:bvrA11:bd10/14/2013:svnDellInc.:pnVostro270s:pvr:rvnDellInc.:rn0XFWHV:rvrA00:cvnDellInc.:ct3:cvr:
dmi.product.name: Vostro 270s
dmi.sys.vendor: Dell Inc.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug cheese guvcview i386 kernel-bug precise staging

** Attachment added: "lspci-vnvn.log"
   
https://bugs.launchpad.net/bugs/1335040/+attachment/4140505/+files/lspci-vnvn.log

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https://bugs.launchpad.net/bugs/1335040

Title:
  USB 3.0 cameras dont work properly after upgrading to 3.2.0-64 kernel.

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