Le 14. 01. 11 19:02, Ben Hutchings a écrit :
On Fri, Jan 14, 2011 at 06:02:44PM +0100, Jean-Christian de Rivaz wrote:
Le 14. 01. 11 17:44, Ben Hutchings a écrit :
On Fri, Jan 14, 2011 at 04:49:26PM +0100, Jean-Christian de Rivaz wrote:
I have experienced this bug today on a AMD64 Squeeze machine and the
same webcam. The Webcam work perfectly on the Lenny machines, but do not
outputs any image on Squeeze, unless you remove the pwc.ko module and
replug the camera.
There is a trace of what happens while the pwc.ko in inserted fir the
first time into the kernel:
[...]
Which version of vgrabbj did you use?
Ben.
vgrabbj 0.9.6
[...]
I mean the *package* version (dpkg -s vgrabbj).
Oops! Sorry for the misunderstanding. Here is the details:
dpkg -s vgrabbj
Package: vgrabbj
Status: install ok installed
Priority: optional
Section: graphics
Installed-Size: 116
Maintainer: Michael Janssen <jamu...@debian.org>
Architecture: amd64
Version: 0.9.6-3.2
Depends: ftplib3 (>= 3.1), libc6 (>= 2.7), libjpeg62 (>= 6b1),
libpng12-0 (>= 1.2.13-4), libv4l-0 (>= 0.5.0), zlib1g (>= 1:1.1.4)
Conffiles:
/etc/vgrabbj.conf e49a78bfbf7a9884737538ea426fd76b
Description: grabs a image from a camera and puts it in jpg/png format
vgrabbj is a program that will grab an image from a v4l compatible
device (usually a webcam of some sort) and save it in a jpg or png
file.
Homepage: http://vgrabbj.gecius.de/
More experiments show that the pwc.ko insertion do a working job half of
the time. I am now able to get a proper video with VLC if I do this:
1) rmmod pwc.
2) plug the webcam.
3) gst-launch v4l2src ! ffmpegcolorspace ! xvimagesink
4) terminate the gstreamer process.
5) vlc v4l2:///dev/video0
This did not work right if I do not start gstreamer before vlc. Anyway
gstreamer and cheese always show strange green images. I also notices
that vlc can work one a single time with v4l instead of v4l2. After that
the pwc.ko seem to be frozen as when is go wrong while linked to the kernel.
Jean-Christian
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