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Voyager2 not showing video

By Vince Sh @vincesh
    2022-01-03 21:49:01.140Z


    So I am testing my Voyager 2 with the HDMI-VGA adapter on a Dell Optiplex 7010. I am unable to get video going at all. I have also tried various HDMI to VGA adapter cables and even a Displayport to HDMI cable I have (that I know works). The Optiplex 7010 has 2 Displayport ports and a single VGA port.

    My logs are at:

    Please check. Thanks,


    • 12 replies

    There are 12 replies. Estimated reading time: 11 minutes

    1. Thanks for reporting this! Sorry about the video issue.

      The interesting line in the log is here:

      Jan 03 21:48:25 tptest ustreamer[602]: -- ERROR [635.614    stream] -- Unable to start capturing: Invalid argument

      There have been a few threads where people have seen similar symptoms:

      What's worked for other users:

      • Restarting the TinyPilot
      • Restarting the target server
      • Reducing video resolution on the target server

      Can you try restarting? If you're still seeing the same behavior after restarting both, is it possible for you to reduce the resolution on the target server?

      It's also possible that using an alternate EDID could fix this.

      1. V
        In reply tovincesh:
        Vince Sh @vincesh
          2022-01-03 23:01:10.187Z2022-01-04 13:06:07.633Z

          Tried everything you mentioned. During a reboot of the host, I did see the boot menu for Ubuntu; but once it got past the boot menu, the "No Signal" returned. I noticed the same ustreamer error:

          Jan 03 22:55:54 tptest ustreamer[1086]: -- ERROR [476.968 stream] -- Unable to start capturing: Invalid argument

          I also ran:

          root@tptest:~# v4l2-ctl --all
          Driver Info:
                  Driver name      : unicam
                  Card type        : unicam
                  Bus info         : platform:fe801000.csi
                  Driver version   : 5.10.17
                  Capabilities     : 0x85a00001
                          Video Capture
                          Metadata Capture
                          Extended Pix Format
                          Device Capabilities
                  Device Caps      : 0x05200001
                          Video Capture
                          Extended Pix Format
          Media Driver Info:
                  Driver name      : unicam
                  Model            : unicam
                  Serial           :
                  Bus info         : platform:fe801000.csi
                  Media version    : 5.10.17
                  Hardware revision: 0x00000000 (0)
                  Driver version   : 5.10.17
          Interface Info:
                  ID               : 0x03000005
                  Type             : V4L Video
          Entity Info:
                  ID               : 0x00000003 (3)
                  Name             : unicam-image
                  Function         : V4L2 I/O
                  Flags         : default
                  Pad 0x01000004   : 0: Sink
                    Link 0x02000007: from remote pad 0x1000002 of entity 'tc358743 10-000f': Data, Enabled, Immutable
          Priority: 2
          Video input : 0 (Camera 0: ok)
          DV timings:
                  Active width: 1920
                  Active height: 1080
                  Total width: 2200
                  Total height: 1125
                  Frame format: progressive
                  Polarities: -vsync -hsync
                  Pixelclock: 148500000 Hz (60.00 frames per second)
                  Horizontal frontporch: 0
                  Horizontal sync: 280
                  Horizontal backporch: 0
                  Vertical frontporch: 0
                  Vertical sync: 45
                  Vertical backporch: 0
          DV timings capabilities:
                  Minimum Width: 640
                  Maximum Width: 1920
                  Minimum Height: 350
                  Maximum Height: 1200
                  Minimum PClock: 13000000
                  Maximum PClock: 165000000
                  Standards: CTA-861, DMT, CVT, GTF
                  Capabilities: Progressive, Reduced Blanking, Custom Formats
          Format Video Capture:
                  Width/Height      : 1920/1080
                  Pixel Format      : 'UYVY' (UYVY 4:2:2)
                  Field             : None
                  Bytes per Line    : 3840
                  Size Image        : 4147200
                  Colorspace        : SMPTE 170M
                  Transfer Function : Default (maps to Rec. 709)
                  YCbCr/HSV Encoding: Default (maps to ITU-R 601)
                  Quantization      : Default (maps to Limited Range)
                  Flags             :
          User Controls
                      audio_sampling_rate 0x00981980 (int)    : min=0 max=768000 step=1 default=0 value=48000 flags=read-only
                            audio_present 0x00981981 (bool)   : default=0 value=1 flags=read-only
          Digital Video Controls
                            power_present 0x00a00964 (bitmask): max=0x00000001 default=0x00000000 value=0x00000001 flags=read-only
          1. Is it possible for you to reduce the display resolution on the Ubuntu server?

          2. V
            In reply tovincesh:
            Vince Sh @vincesh
              2022-01-04 16:16:54.020Z

              I changed the resolution from 1920x1080 to 1280x1024. Still no joy.

              I ordered this unit as a test unit because I have several users with Linux workstations that have encrypted storage. Because of the encryption they cannot remotely reboot their workstations. I was hoping this solution would be a low cost plug and play option. What is the return policy for this device?


              1. Dell desktops are generally very cooperative with TinyPilot, especially if they're made within the last 10 years. It's possible this is a defective capture card rather than an inherent incompatibility with TinyPilot. Are you able to test TinyPilot's video capture on any other device that outputs HDMI?

                It also could be an incompatibility with the VGA adaptor or DisplayPort adaptor rather than the Optiplex. From customer reports, VGA to HDMI adaptors generally work with TinyPilot, but this one definitely does.

                If we're not able to find a solution, you can email, we can work out a return or replacement with you.

              2. C
                In reply tovincesh:
                Gene Montgomery @Cthulhu7747
                  2022-01-10 03:32:26.529Z

                  I use these for my Optiplex 9020s and PowerEdge T30 (ESXi hosts): They work well, even through a 4-port manual KVM.

                  Occasionally, I have had to move from one DisplayPort output to the other on the OptiPlex boxes in order for an image to display in TinyPilot.

                  1. AAleksander Sørup Lund @Anubuss
                      2023-08-09 08:39:09.683Z

                      Did this solve the NO SIGNAL Issue? I am trying to connect TinyPilot to Jetson Orin, and have massive issues with getting HDMI and Displayport connected and working.

                      1. David @david2023-08-09 11:21:16.658Z

                        Hi @Anubuss, I'm sorry you're running into this No Signal issue.

                        Are you using an HDMI/DisplayPort adapter? It's possible that your target machine is outputting at an unsupported resolution.

                        Could you share a log from your TinyPilot for me to review? On your TinyPilot's web interface, navigate to System > Logs and click Get Shareable URL. Then share the URL in your reply.

                    • B
                      In reply tovincesh:
                        2024-04-03 15:54:40.642Z

                        Hi all, I'm considering purchasing one of these, but I ran across this thread when researching compatibility. It appears orphaned. Has anyone ever had a working example of a (brand new) Dell PC with DisplayPort only, working with any TinyPilot network KVM's?

                        1. David @david2024-04-04 10:54:19.510Z

                          Hi @ben, thanks for your question!

                          TinyPilot generally supports target machines that output using DisplayPort, although you'll need to use a DisplayPort to HDMI adapter/cable. You'll also need to make sure your machine outputs at resolution that TinyPilot supports.

                          One issue we've seen with Dell machines is that newer versions of the UEFI BIOS appear to have issues with recognizing TinyPilot's mouse. However, we haven't had any reports of this issue in a while.

                          I hope that helps! Please let me know if you have any questions.

                          1. B@Ben
                              2024-04-04 20:44:00.736Z

                              Thanks David! Any specific DP>HDMI adapter that is approved or recommended?

                              1. David @david2024-04-05 12:17:58.993Z

                                You're welcome!

                                Any specific DP>HDMI adapter that is approved or recommended?

                                I don't think we've tested any DisplayPort to HDMI adapters, so there aren't any approved/recommended ones that I can share with you. Having said that, there's a reasonable chance that an 'Active' adapter will work better than a 'Passive' adapter.

                                I hope that helps!