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Realsense D405 cannot start

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Kai Chen2

Hi, everyone. I use Intel RealSense D405 in Jetson Xavier. I plug in the camera's USB and mouse USB in Jetson Xavier. Each time when I start the code, there is an erro:

Runtime erro. Cannot resolve requests.  This means the D405 camera cannot be started. 

However when I exchange the camera's USB and the mouse USB position in Jetson, the camera can be started normally. I wonder why this happens??  

 

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  • MartyG

    Hi Kai Chen2  The 'Cannot resolve requests' error usually means that a stream resolution / FPS configuration has been requested that the camera cannot provide. Which resolution and FPS is your program using, please?

     

    You could test with the configuration 640x480 resolution and 30 FPS, as the camera should always be able to work with these stream settings, 

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  • Kai Chen2 
    Hi,MartyG: 
    I used the following code:
    cfg.enable_stream(rs.stream.depth, 1280, 720, rs.format.z16, 15)  
    cfg.enable_stream(rs.stream.color, 1280, 720, rs.format.rgb8, 15)  
    That is 1280*720 resolution, 15FPS.
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  • MartyG

    That configuration should be supported when the camera is on a USB 3 connection.  If the USB connection was being detected as the slower USB 2.1 though then it would not be available.  Instead, the maximum supported FPS at 1280x720 will be 5 FPS.

     

    A camera might detect as USB 2.1 when plugged into a USB 3 port on the computer if the camera is attached to a USB 2 hub or you are using your own choice of USB cable instead of the official one supplied with the camera and it is a USB 2.1 cable instead of a USB 3 one.

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