Cheese segfaults on start

[dierre]

Cheese segfaults on startup.

If launched from console, this is what appears:

fdr@maggie:~$ cheese

(cheese:5897): Gtk-WARNING **: Attempting to add a widget with type GtkImage to a GtkToggleButton, but as a GtkBin subclass a GtkToggleButton can only contain one widget at a time; it already contains a widget of type GtkLabel

(cheese:5897): Gtk-WARNING **: Attempting to add a widget with type GtkImage to a GtkToggleButton, but as a GtkBin subclass a GtkToggleButton can only contain one widget at a time; it already contains a widget of type GtkLabel

(cheese:5897): Gtk-WARNING **: Attempting to add a widget with type GtkImage to a GtkToggleButton, but as a GtkBin subclass a GtkToggleButton can only contain one widget at a time; it already contains a widget of type GtkLabel

(cheese:5897): Gtk-WARNING **: Attempting to add a widget with type GtkImage to a GtkButton, but as a GtkBin subclass a GtkButton can only contain one widget at a time; it already contains a widget of type GtkLabel

(cheese:5897): Gtk-WARNING **: Attempting to add a widget with type GtkGrid to a GtkToggleButton, but as a GtkBin subclass a GtkToggleButton can only contain one widget at a time; it already contains a widget of type GtkLabel

(cheese:5897): Gtk-WARNING **: Attempting to add a widget with type GtkImage to a GtkButton, but as a GtkBin subclass a GtkButton can only contain one widget at a time; it already contains a widget of type GtkLabel
libv4l2: error getting pixformat: Argomento non valido

** (cheese:5897): CRITICAL **: cheese_camera_device_get_uuid: assertion `CHEESE_IS_CAMERA_DEVICE (device)' failed
Errore di segmentazione (core dump creato)

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: cheese 3.4.1-0ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-26.41-generic 3.2.19
Uname: Linux 3.2.0-26-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu11
Architecture: amd64
Date: Thu Jul 19 13:58:40 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120328)
MachineType: Acer Aspire 5630
ProcEnviron:
 TERM=xterm
 PATH=(custom, user)
 LANG=it_IT.UTF-8
 SHELL=/bin/bash
RelatedPackageVersions:
 cheese 3.4.1-0ubuntu2
 cheese-common 3.4.1-0ubuntu2
SourcePackage: cheese
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/17/2006
dmi.bios.vendor: Acer
dmi.bios.version: V3.00
dmi.board.name: Grapevine
dmi.board.vendor: Acer
dmi.board.version: N/A
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnAcer:bvrV3.00:bd10/17/2006:svnAcer:pnAspire5630:pvrV3.00:rvnAcer:rnGrapevine:rvrN/A:cvnAcer:ct10:cvrN/A:
dmi.product.name: Aspire 5630
dmi.product.version: V3.00
dmi.sys.vendor: Acer

[dierre (fdr)]

Attaching backtrace.

[Alexander Lazarević (e11bits)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Please answer these questions:

* What camera model are you using?
* Have you checked that this model works with Video4Linux2? This [1] link might be of help.

This will help us to find and resolve the problem.

[1] http://ubuntuforums.org/showthread.php?t=1669584

[dierre (fdr)]

The laptop I am using (acer aspire 5633WLMi) has two webcams: one is the one which is integrated right above the lcd, listed by lsusb as Bus 001 Device 006: ID 046d:0896 Logitech, Inc. OrbiCam. I suspect this webcam could be physically broken, and was actually using cheese to investigate. :-)

The other webcam is a Creative labs CT6840, and is connected to a usb port and listed as Bus 002 Device 003: ID 05a9:0511 OmniVision Technologies, Inc. OV511 Webcam.

In the past I have used with success under linux both webcams. (Although it was quite some time ago, so I am not sure if it was V4L or V4L2).

Alexander, the thread on ubuntuforums that you pointed me to unfortunately has broken links -- can you suggest me another way to check if the camera is V4L2 compatible? Thanks!

[Camille Appert (bibinou)]

Looks like the Orbicam is supported by this v4l2 driver : http://www.ideasonboard.org/uvc/ and it looks like it's in the kernel :
> Linux 2.6.26 and newer includes the Linux UVC driver natively.
Creative Labs drivers should be here : opensource.creative.com/webcam.html but it's unresponsive for me at the moment so I can't check if they support v4l2.

[Alexander Lazarević (e11bits)]

Even if v4l2 does not support a camera or if a camera is broken, cheese shouldn't crash because of this.

Thanks for reporting this bug and any supporting documentation. Since this bug has enough information provided for a developer to begin work, I'm going to mark it as confirmed and let them handle it from here. Thanks for taking the time to make Ubuntu better!

[dierre (fdr)]

Some updates:

1) I have tried again *without* plugging in the Creative Webcam (i.e. using only the integrated Logitec OrbiCam) and the behaviour is the same.

2) I think the OrbiCam has no hardware problems because it works correctly if I try to do a Google Hangout from Chrome.