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    Resolution problem when using VOXL2-mini USB3 to HDMI adapter

    VOXL 2 Mini
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    • J
      Jskim @Vinny
      last edited by Jskim

      @Vinny
      Thank you so much for your quick reply.

      1. The HDMI to USB dongle is powered by USB3 from the VOXL2-mini.
      2. We have no problem using the TP link wifi dongle on the USB3 port. I have already tested it.
      TP link WiFi dongle.PNG

      3. We will tell you the results of the test with the arducam USB3.0 camera.

      system configuration.png
      1) You need to check whether the problem is with the USB3.0 port or the streamer or the uvc server.???
      2) You can see the voxl2-mini test result in the image below.

      lsusb 명령어.PNG
      lsusb 명령어_01.PNG
      lsusb 명령어_02.PNG
      lsusb 명령어_03.PNG
      lsusb 명령어_04.PNG
      lsusb 명령어_05.PNG

      uvc server config.PNG
      inspect service.PNG
      inspect cam 명령어.PNG
      inspect cam 결과.PNG

      *Note: We use USB3 to USb2 conversion, 1280x720 @10fps no problem.
      USB3 to USB2 conversion 1280x720.PNG
      USB3 to USB2 conversion Portal.PNG

      1. We tested arducam directly connected to Windows PC USB3 port and there is no problem.
        윈도우 PC 결과.png

      VLC 결과_01.png
      VLC 결과_02.png

      Thanks,

      Eric KatzfeyE 1 Reply Last reply Reply Quote 0
      • Eric KatzfeyE
        Eric Katzfey ModalAI Team @Jskim
        last edited by

        @Jskim I'm sorry but I keep reading through your messages and am finding it hard to understand what you are asking. It sounds like everything works fine up to 1280x720@10fps. But you want at least 1280x720@30fps. What happens when you change 10 to 30? Does voxl-uvc-server not run? Or does it run fine but you see no output?

        J 1 Reply Last reply Reply Quote 0
        • J
          Jskim @Eric Katzfey
          last edited by

          @Eric-Katzfey
          Thank you for your quick reply.

          I have a problem with the VOXL2-mini USB3 port.
          When I connect a USB3 camera directly to the VOXL2-mini, the camera is recognised but no output.
          However, when we change the USB3 to USB2, the camera output is only 1280x720@10fps.

          1. Correct. we want a minimum of 1280x720@30fps.

          2. voxl-uvc-server is running. But no output is displayed.

          3. what happens when you change 10 to 30?
            A) When you change to 30, there is no output.

          Thanks,

          Eric KatzfeyE 1 Reply Last reply Reply Quote 0
          • Eric KatzfeyE
            Eric Katzfey ModalAI Team @Jskim
            last edited by

            @Jskim Ah, okay, that's more clear now. Have you considered the suggestions from @Vinny ? The USB 3.0 port on VOXL2 mini requires some extra capacitance or else it won't work. This is not normally provided by any standard cable and needs to be added in separately. Also, as per the documentation https://docs.modalai.com/voxl-uvc-server/ what output do you see if you enable debug messages? (e.g. voxl-uvc-server -d)

            J 1 Reply Last reply Reply Quote 0
            • J
              Jskim @Eric Katzfey
              last edited by

              @Eric-Katzfey
              Thank you very much for the quick reply.

              1. When I executed the voxl-uvc-server -d command, the screen froze.
                voxl-uvc-server -d.jpg

              Thanks,

              Eric KatzfeyE 1 Reply Last reply Reply Quote 0
              • Eric KatzfeyE
                Eric Katzfey ModalAI Team @Jskim
                last edited by

                @Jskim Have you added the required capacitors as explained by @Vinny ?

                J 1 Reply Last reply Reply Quote 0
                • J
                  Jskim @Eric Katzfey
                  last edited by

                  @Eric-Katzfey

                  Sorry, please tell me again how to add capacitors.

                  Thanks,

                  J 1 Reply Last reply Reply Quote 0
                  • J
                    Jskim @Jskim
                    last edited by

                    @Jskim
                    USB3 to USB2 dongle.png

                    We tested it using a USB30 to USB2.0 cable.

                    1. 1280x720@10fps is no problem.
                    2. 1280x720@30fps does not work.

                    Thanks

                    1 Reply Last reply Reply Quote 0
                    • M
                      milanerd
                      last edited by

                      We also encountered the problem of 10 FPS limit when trying to stream HD video (1280x720 at more than 10 FPS) using USB3 to HDMI adapter on VOXL2.

                      @Jskim did you manage to identify/solve the issues somehow?

                      ModeratorM 1 Reply Last reply Reply Quote 0
                      • ModeratorM
                        Moderator ModalAI Team @milanerd
                        last edited by

                        @milanerd We have added a cable with built in extra capacitance https://www.modalai.com/products/mcbl-00022?variant=49030324060464

                        M 1 Reply Last reply Reply Quote 0
                        • M
                          milanerd @Moderator
                          last edited by

                          @Moderator Thank you. If I understood well, the adapter with added capacitance solved the issue with HD stream at 30 FPS?

                          ModeratorM 1 Reply Last reply Reply Quote 0
                          • ModeratorM
                            Moderator ModalAI Team @milanerd
                            last edited by

                            @milanerd The added capacitance helps VOXL 2 Mini's USB port achieve USB 3 speeds. We don't have that adapter to confirm a fix for your issue, but with the cable the link should transfer much faster

                            1 Reply Last reply Reply Quote 0
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