Re: [SLE] Can't get video clips to play from laptop through projector -- long, sorry.
- From: Jürgen Mell <mell@xxxxxxxxxx>
- Date: Mon, 8 May 2006 18:14:21 +0200
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On Monday 08 May 2006 17:41, Gil Weber wrote:
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On Monday 08 May 2006 16:40, Gil Weber wrote:
Hello, everyone.
...
The Powerpoint displayed perfectly on the large screen for the
audience. And when I switched desktops and launched Totem, the audio
component of the video clips played through the speakers. But, in
the Totem window where the video was supposed to be, I only had a
blue screen up on the wall for the audience.
...
Hi Gil,
I believe that this problem might be related to the fact that most
video application use some 'work arounds' to speed up the video output
when playing movies. This means that they do not use the standard X
server but simply create a window on the desktop an then fill that
window by writing more or less directly into the graphic card's
memory. That will not work with a dual-head set-up.
The only way I can imagine here is to use a standard output method
which does not go around the X server but uses it. If you use
kaffeine, the
xine
program is used to do the real work. Call xine directly with --help
and it
will display a number of options for the video output methods. Try
these and have a look whether any of these will give a display on the
second head. Most likely, the output will be pretty slow if it works
at all.
Bye,
Jürgen
Jurgen, thanks for the reply. I looked at <xine -help> and found
lots of options. But nothing jumps out at me as applying to second head
displays.
Perhaps I'm not experienced enough to know what I am looking at?
Are you saying that viewing the videos in Xine (with a special
option for the video output) might work where neither Totem nor Kaffeine
did work? Or am I not understanding?
Maybe a major stumbling block in figuring this out is that I do not
have a projector to test possible solutions. I will get my first chance
in 2 weeks, when I fly 1500 miles to lecture and only then connect to a
projector. Yikes! What a mess.
Gil, my idea behind using xine directly is to make things simpler. As
kaffeine is only the graphical front-end for xine, using it directly will
remove one step of complexity. If you get it to work with xine directly,
you can then edit the setting in kaffeine so that you can use it as the
front-end.
xine has serveral video drivers (option -V or --video-driver). You should
try all of them and see whether you get any picture at all on your
notebook and if that works on an external monitor (try to get a monitor
which allows similar settings as your projector).
For more information about xine's video drivers you can go to
http://xinehq.de/index.php/faq#VIDEODRIVER
My guess would be that xine -V XShm might provide the best chances but
depending on your graphics hardware another of the drivers provided might
also work. You could also try to use another graphics driver for your X
server if any is available.
Sorry, you will have to put some time into trial and error here and the
outcome is pretty unsure. This is one of the points where 'that other OS'
is much better supported by the hardware producers.
Bye,
Jürgen
- --
BR Technologies GmbH & Co.KG
Im Bahlbrink 11-13, D-30827 Garbsen, Germany
Tel : +49-5131-4404-20 - Fax: +49-5131-4404-56
e-Mail: mell@xxxxxxxxxx - Internet: www.br-tech.de
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