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[Bug 1194761] Re: Camera - Microdia [0c45:648d] camera_test is unable to take still pictures


Po-Hsu Lin, thank you for testing Trusty. Given the dependence on
revision noted in
, it would be most helpful to have one bug report per revision, in order
to easily focus on it. Currently, the report is bouncing around between
revision results, making it confusing for others. Would this be ok?

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  Camera -  Microdia [0c45:648d] camera_test is unable to take still

Status in “linux” package in Ubuntu:

Bug description:
  CID: 201203-10664 Dell Inspiron 7420

  On this system, the camera_test script is able to display video capture form the built-in camera. But it's unable to display a still image and multiple resolution images, the file size of temporarily stored file is zero. Causing the image viewer complain about "Could not load image" (screenshot attached) Or "Failed to validate image" for multiple resolution images test case. I tried to get more information from the script by adding "-v" to fswebcam command like this:
      def _still_helper(self, filename, width, height, quiet, pixelformat=None):
          Captures an image to a given filename.  width and height specify the
          image size and quiet controls whether the image is displayed to the
          user (quiet = True means do not display image).
          command = ["fswebcam -v", "-S 3", "--no-banner",
                     "-d", self.args.device,

  I didn't get any extra imformation, but both the "still" and
  "resolutions" test cases work fine with this.

  WORKAROUND: run "fswebcam --save OK.jpg -D 1"

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.5.0-34-generic 3.5.0-34.55~precise1
  ProcVersionSignature: Ubuntu 3.5.0-34.55~precise1-generic
  Uname: Linux 3.5.0-34-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.25.
  ApportVersion: 2.0.1-0ubuntu17.3
  Architecture: amd64
   **** List of CAPTURE Hardware Devices ****
   card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
   /dev/snd/controlC0:  ubuntu     1635 F.... pulseaudio
   country TW:
    (2402 - 2472 @ 40), (3, 27)
    (5270 - 5330 @ 40), (3, 17), DFS
    (5735 - 5815 @ 40), (3, 30)
   Card hw:0 'PCH'/'HDA Intel PCH at 0xf1610000 irq 46'
     Mixer name	: 'Intel PantherPoint HDMI'
     Components	: 'HDA:14f1506e,1028055f,00100002 HDA:80862806,80860101,00100000'
     Controls      : 26
     Simple ctrls  : 11
  Date: Wed Jun 26 15:32:34 2013
  HibernationDevice: RESUME=UUID=1b545ae9-c477-4296-bad8-13df99c1a066
  InstallationMedia: Ubuntu 12.04.2 LTS "Precise Pangolin" - Release amd64 (20130213)
  MachineType: Dell Inc. Inspiron 7420
  MarkForUpload: True
   PATH=(custom, no user)
   0 inteldrmfb
   1 nouveaufb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-34-generic root=UUID=cae2ed03-ffc3-4fe2-8206-9939fad0a62a ro quiet splash vt.handoff=7
   linux-restricted-modules-3.5.0-34-generic N/A
   linux-backports-modules-3.5.0-34-generic  N/A
   linux-firmware                            1.79.4
  SourcePackage: linux
  StagingDrivers: rts5139
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/24/2012
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: X58
  dmi.board.name: A4E3T1
  dmi.board.vendor: Dell Inc.
  dmi.board.version: X02
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnDellInc.:bvrX58:bd07/24/2012:svnDellInc.:pnInspiron7420:pvr:rvnDellInc.:rnA4E3T1:rvrX02:cvnDellInc.:ct8:cvr0.1:
  dmi.product.name: Inspiron 7420
  dmi.sys.vendor: Dell Inc.

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