El 2012-07-29 a las 02:07 +0800, Umarzuki Mochlis escribió:

(resending to the list)

> 2012/7/28 Camaleón <noela...@gmail.com>:
> > On Sat, 28 Jul 2012 10:57:16 +0800, Umarzuki Mochlis wrote:
> >
> > Have you checked if it happens with all kind of video files? From ogg to
> > mpeg, comercial DVD's, avi...  also, have you checked with VideoLAN? It
> > uses its own codecs instead the system's one, so it can be a good test to
> > discard a problem coming from the codecs.
> >
> 
> i checked with .ogg & .avi but none can show video, except audio
> strangely enough, streaming ogg via iceweasel works (built-in HTML5 
> capability?)
> already tried with smplayer & VLC but the same

Streaming could be done from a flash player object or using the 
<video> tag of HTML5, only the code of the page you rendered can tell.

More strange is that VLC fails to display the video because this fact 
will discard a missing plugin problem. Can you launch the video file from 
VLC using the command line? You can Use the debug parameter to get more 
info (vlc -vvv myfile.ogg). Also, check for the current video output 
under your preferences, it should be set to "X11".

Do commercial/self-made DVDs play fine or fail in the same way?

> > What ffmpeg package do you have installed? Debian's stock or the one from
> > D-M?
> >
> 
> i think its from official repo
> 
> # dpkg --get-selections | grep ffmpeg
> gstreamer0.10-ffmpeg                          install
> libxine1-ffmpeg                                       install
> 
> # aptitude show gstreamer0.10-ffmpeg
> Package: gstreamer0.10-ffmpeg
> New: yes
> State: installed
> Automatically installed: yes
> Version: 0.10.10-1
> Priority: optional
> Section: video
> Maintainer: Maintainers of GStreamer packages
> <pkg-gstreamer-maintain...@lists.alioth.debian.org>
> 
> # aptitude show libxine1-ffmpeg
> Package: libxine1-ffmpeg
> New: yes
> State: installed
> Automatically installed: yes
> Version: 1.1.19-2
> Priority: optional
> Section: video
> Maintainer: Darren Salt <li...@youmustbejoking.demon.co.uk>

Yes, they come from the official repo, otherwise there will be a "-bpo" in 
the package's name (in addition, those packages are not available at 
D-M). Anyway, I don't think this is a plugin issue because if so, VLC 
would have no problem for getting video and also, an ogg video file 
wouldn't experience this.

> > Mmm... Sandy Bridge uses to have dual VGA chipsets but anyway, vdpau is
> > not nvidia specific. Do you have "libvdpau1" installed? BTW, Google says
> > that "libvdpau_nvidia.so" warning can be harmless.
> 
> could it be a problem with the video driver?
> the built-in webcam that comes with this laptop (lenovo v470) also
> cannot show any video from Cheese

The problem with webcam can be of a different nature, you will have to 
ensure your device is supported and modules are properly loaded. Also, 
you can try to get video from a different application such as Ekiga.

Greetings,

-- 
Camaleón 


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