5 Replies Latest reply on Aug 21, 2017 9:16 AM by Intel Corporation

    librealsense error

    Ming.Ji888888

      My cmputer configuration:win10/SR300/vs2013 update 5

      When I use librealsense, the error is shown in the figure

       

      How does this rs.error work ?

        • 1. Re: librealsense error
          MartyG

          A report about this error with LibrealSense and the SR300 on the BountySource site said that it can be caused by a camera that is disconnecting.

           

          Bountysource

           

          Camera disconnections can be greatly reduced by plugging the camera into a mains-powered hub instead of directly into the PC'S USB port.  They can be purchased on stores such as Amazon for around $15 by searching for 'powered usb 3.0 hub'.  In the majority of cases where PC hardware meets the camera's minimum specifications and there are camera detection or installation problems, a powered hub fixes the problem.

           

          I note in your case though that the other three streams are functioning.  Does the program stop running some seconds after the program starts?  That too would be indicative of a camera signal disconnection issue.  Do the other streams continue to update after the error appears or does the entire program just freeze up?

          • 2. Re: librealsense error
            Ming.Ji888888

            Thank you for your reply. Thank you !

            When I used librealsense, I just ran the program and I reported the error, and then the program ended,and I was already using the ORICO USB3.0 Hub。

            But in the same environment, I used my own program, but I could run the data 。

            So it's hard for me to understand this error

            • 3. Re: librealsense error
              Ming.Ji888888

              I was testing it on a desktop computer, and that was the case; I tested it again on my laptop, downloaded librenslsense, and then configured the environment property, and then the same thing happened.

              In the process of running the program, I looked closely at SR300 when the USB 3.0 hub was used without any device interruption

              • 4. Re: librealsense error
                MartyG

                There are very few reports of this error occurring, so it is difficult to diagnose, and we have now established that you are using a USB hub.

                 

                With a lot of problems involving streaming in Librealsense, patching the uvcvideo file is a recommended step.  A ROS website says, "librealsense requires patches to the uvcvideo loadable kernel module to support various cameras.  Intel RealSense R200 camera support is upstreamed in the 4.4.x linux kernel, but older kernels and all other Intel RealSense™cameras require patches."

                 

                Could you give patching a try please?

                 

                librealsense - ROS Wiki

                • 5. Re: librealsense error
                  Intel Corporation
                  This message was posted on behalf of Intel Corporation

                  Hi Ming.Ji888888,

                  We were wondering if you tried patching the file as MartyG suggested to?

                  Regards,
                  Diego V.