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[Sezer Yalcin <sy@xxxxxxxxx>]

Webcam works fine on 10.04 LTS live usb image. It has kernel 2.6.32-38
I will try to check that bisection thing soon but logs tell that this could be related to usb power settings.
I believe this worked with 3.x kernel sometime, I will try to find that too.


** Changed in: linux (Ubuntu)
       Status: Expired => Confirmed

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https://bugs.launchpad.net/bugs/1171251

Title:
  174f:5a31 Webcam is no longer detected

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  My webcam started acting weird in recent kernel updates and now I notice that it's completely undetected.
  Bus 002 Device 003: ID 174f:5a31 Syntek Sonix USB 2.0 Camera
  /dev/video* does not exist.

  I will try older kernels and update this ticket.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.2.0-40-generic 3.2.0-40.64
  ProcVersionSignature: Ubuntu 3.2.0-40.64-generic 3.2.40
  Uname: Linux 3.2.0-40-generic x86_64
  NonfreeKernelModules: fglrx
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu17.2
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: ALC662 rev1 Analog [ALC662 rev1 Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  sezer      2537 F.... xfce4-volumed
                        sezer      2554 F.... pulseaudio
   /dev/snd/controlC0:  sezer      2537 F.... xfce4-volumed
                        sezer      2554 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xfcdf8000 irq 48'
     Mixer name	: 'Realtek ALC662 rev1'
     Components	: 'HDA:10ec0662,104319c3,00100101 HDA:11c11040,10431636,00100200'
     Controls      : 26
     Simple ctrls  : 14
  Card1.Amixer.info:
   Card hw:1 'HDMI'/'HDA ATI HDMI at 0xfceec000 irq 49'
     Mixer name	: 'ATI R6xx HDMI'
     Components	: 'HDA:1002aa01,00aa0100,00100000'
     Controls      : 6
     Simple ctrls  : 1
  Card1.Amixer.values:
   Simple mixer control 'IEC958',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [on]
  Date: Sun Apr 21 18:08:38 2013
  HibernationDevice: RESUME=UUID=d42e2415-0ae7-4fe9-b1fb-7a17f045968b
  InstallationMedia: Xubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120817.3)
  MachineType: ASUSTeK Computer Inc. F8Va
  MarkForUpload: True
  ProcEnviron:
   LANGUAGE=en_CA:en
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_CA.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 VESA VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-40-generic root=UUID=1f39f034-a2a5-421d-814b-1b7298477f09 ro quiet splash vt.handoff=7
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-40-generic N/A
   linux-backports-modules-3.2.0-40-generic  N/A
   linux-firmware                            1.79.1
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 02/09/2009
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: F8Va
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: ATN12345678901234567
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr209:bd02/09/2009:svnASUSTeKComputerInc.:pnF8Va:pvr1.0:rvnASUSTeKComputerInc.:rnF8Va:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: F8Va
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

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