[AG-TECH] X-Win32 troubles

[Paul B. Huang]

Well, vic has a screen capture driver, which will usually send out
whatever is on the upper left corner of the x-server.  But in your case,
the x-server is actually running on the windows machine, so it will grab
that and send it out.  If you want to send out the video stream from the
capture card on Linux, you have to use the menu on vic to change the
device.  If you can't change the device setting, then there are a couple
problems with the video capture (permission problems, incorrect driver
setup, etc), so then vic defaults to the screen capture.

--Paul

On Fri, 20 Dec 2002, Charles R. Anderson wrote:

> Ok, here's a really weird one for you.  We have attempted to run X-Win32
> on our Windows display box in order to start the node on the Linux box
> and have it display the rat window, etc. on the display machine so we
> don't need to have a head on the Linux box.  This works, however,
> somehow, the upper left-hand corner of the Windows machine's desktop is
> being sent out as a video stream, overriding the camera video that is
> coming into the Linux box's video capture card.  This desktop video
> image is definately being multicast out, since we can see it on totally
> different systems running Open Mash and the Access Grid software, and a
> capture of the network traffic verifies that it is coming from the Linux
> encoder box.
> 
> A bunch of us here have been attempting to figure out how this is
> possible, and we are at a loss.  We don't understand how it is possible
> that video from the Windows desktop (which isn't running the capture
> card or encoder) could end up as a multicast video stream from the Linux
> box.  Any ideas? Has anyone else successfully used an X server on their
> Windows display box?
> 
> Thanks.
> 
> -- 
> Charles R. Anderson			cra at wpi.edu
> Network Engineer			(508) 831-6110
> Computing and Communications Center	X2220 on-campus
> Worcester Polytechnic Institute	    Fax (508) 831-5483
>