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[Andrew <1406366@xxxxxxxxxxxxxxxxxx>]

Looks like the bug is related on conflict of the modules rts5139 (card
reader) and uvcvideo (webcam).  After some googling i've blacklisted the
rts5139 module and the webcam is being detected fair. Then I've tested
the problem with both modules and mainline kernel
3.15.0-031500rc2-generic #201404201435 SMP. There is definitely a
problem - when a card is inserted into card reader, doing some
operations on it and eject, close/open the laptop (after sleep mode) the
either happens: webcam is disappearing or the entire embedded card-
reader disappears. Or, like usually, the webcam is missing right on cold
boot. Those problems never happen under 12.04 LTS.

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https://bugs.launchpad.net/bugs/1406366

Title:
  Lenovo Ideapad S 205 - webcam is not detected after installing 14.04
  (works well on 12.04)

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  I've installed 14.04 along with 12.04 on other partition. My webcam is
  not detected if I perform 14.04 cold boot. And if I perform  12.04
  cold boot - the webcam works. And it continues working if I do warm
  reboot 12.04 to 14.04.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-43-generic 3.13.0-43.72
  ProcVersionSignature: Ubuntu 3.13.0-43.72-generic 3.13.11.11
  Uname: Linux 3.13.0-43-generic i686
  NonfreeKernelModules: fglrx
  ApportVersion: 2.14.1-0ubuntu3.6
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  andrew     8868 F.... pulseaudio
   /dev/snd/controlC0:  andrew     8868 F.... pulseaudio
  CRDA: Error: [Errno 2] Нет такого файла или каталога: 'iw'
  CurrentDesktop: LXDE
  Date: Mon Dec 29 22:45:38 2014
  HibernationDevice: RESUME=UUID=d4d0029d-ccfa-495f-95d7-0ada1c0619ca
  InstallationDate: Installed on 2014-12-28 (1 days ago)
  InstallationMedia: Lubuntu 14.04 LTS "Trusty Tahr" - Release i386 (20140416.2)
  MachineType: LENOVO Brazos
  ProcFB: 0 VESA VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-43-generic root=UUID=3f134760-183c-4cc3-a418-ffffa69c58cf ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-43-generic N/A
   linux-backports-modules-3.13.0-43-generic  N/A
   linux-firmware                             1.127.10
  SourcePackage: linux
  StagingDrivers: rts5139
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/10/2011
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 4BCN24WW
  dmi.board.asset.tag: Base Board Asset Tag Unknown
  dmi.board.name: Inagua
  dmi.board.vendor: LENOVO
  dmi.board.version: 109-B78210-00A
  dmi.chassis.asset.tag: Chassis Asset Tag Unknown
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Chassis Version Unknown
  dmi.modalias: dmi:bvnLENOVO:bvr4BCN24WW:bd08/10/2011:svnLENOVO:pnBrazos:pvrIdeapadS205:rvnLENOVO:rnInagua:rvr109-B78210-00A:cvnLENOVO:ct10:cvrChassisVersionUnknown:
  dmi.product.name: Brazos
  dmi.product.version: Ideapad S205
  dmi.sys.vendor: LENOVO

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