Re: cheese-3.10.2 does not detect webcam but guvcview does

[Bastien Nocera <hadess hadess net>]

On Sat, 2014-05-24 at 09:42 +0000, John Frankish wrote:
> > -----Original Message-----
> > From: John Frankish
> > Sent: Thursday, 22 May, 2014 17:33
> > To: 'cheese-list gnome org'
> > Subject: cheese-3.10.2 does not detect webcam but guvcview does
> >
> > Using cheese-3.10.2 compiled from scratch, the integrated webcam on my
> > dell e6220 is not detected, but using guvcview it works fine.
> >
> > Various output pasted below, what trouble-shooting steps could I try?
> >
> > Regards
> > John
> I did some more checking and found:
>
> $ cheese --device=/dev/video1
> ...
> (cheese:9922): GStreamer-CRITICAL **: gst_bin_add: assertion 'GST_IS_ELEMENT (element)' failed

There's a required element that's missing (which probably means that
cheese expects it to be there, but your installation is broken, or
Cheese isn't checking for it correctly).

Try running:
G_DEBUG=fatal_warnings gdb --args cheese --device=/dev/video1

Type "run" at the gdb prompt, and type "bt" when the first happens. If
the first warning isn't the one generating the warning above, type
"continue".

This sort of warning is probably better reported in Bugzilla though, and
using the latest version of Cheese (3.12.1) would be a good idea.

Cheers