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Even with the update, I'm still seeing curious behavior. The first time I ran openni_launch, it worked. Then I ran the turtlebot kinect.launch and it worked. After the Turtlebot version had been running for a few minutes, I got messages like:
[ WARN] [1322144717.802973318]: Camera Info for rgb stream has subscribers, but stream has stopped.
[ WARN] [1322148935.064305326]: Camera Info for rgb stream has subscribers, but stream has stopped.
[ WARN] [1322148966.416502492]: Camera Info for rgb stream has subscribers, but stream has stopped.
[ WARN] [1322149924.350446490]: Camera Info for rgb stream has subscribers, but stream has stopped.
A rostopic hz running on the rgb camera_info starts showing "no new messages", it disappeared from rviz, and nothing happened any more. At that point, the turtlebot kinect.launch stopped working and hasn't worked since. Disconnecting and reconnecting the Kinect's USB to the netbook doesn't fix it, and neither does a reboot.
But, I can roslaunch openni_launch openni_launch and it works for a while. If it stops publishing, I can just cancel and relaunch it.
Hope this helps.
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