BeagleBoard_XM with Ubuntu 11.04 + Opencv 2.3.2 and Logitech HD Pro Webcam C910 Web camera

Hello All,
I have installed Ubuntu 11.04 on BB_XM. I also have Opencv 2.3.2 installed on it. I am using Logitech HD Pro Webcam C910 Web camera. When I run some sample programs, it works fine. But when I tried to run facedetect program. The camera’s light turn ON. The terminal window shows

In capture …
detection time =4591.77ms
detection time =5344.15ms

But display window is blank, not getting any output.

Please see attachment…

Does anybody idea, Whats going wrong ?

Is Logitech HD Pro Webcam C910 Web camera is Compatible with BB_XM?

also according to detection time, Is it to slow ?

Please share your ideas…

Thanks,
Dhut

IMAG0370.jpg