[AG-TECH] X-Win32 troubles
Robert Olson
olson at mcs.anl.gov
Fri Dec 20 16:35:19 CST 2002
This may happen if you for some reason don't have read access to the video
capture devices; I suspect that if you are not logging into the console of
the linux machine that this is happening - the console login grants
read/write permissions on the video devices to the console user.
chmod 666 /dev/video* might do what you want (remember that then anyone who
has access to the machine can capture video).
--bob
At 05:31 PM 12/20/2002 -0500, Frank Sweetser wrote:
>On Fri, Dec 20, 2002 at 02:28:56PM -0500, 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.
>
>Another data point - we later tried the same thing, except displaying on
>a RedHat 8 box running X instead of Win2k running X-Win32, with the same
>results: a the video stream multicast out was a corner of the RedHat box's
>desktop, not what the camera was seeing.
>
>--
>Frank Sweetser fs at wpi.edu
>WPI Network Engineer
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