My audio isn't working | speakers are not working | no audio

    Your computer will transmit audio via the video connections. If audio is not working, please go to your sound settings and choose the correct output device. This is typically listed as the monitor that is connected to the KVM because the audio is transmitting via the video connections. If you have an external device plugged into the audio mini-jack, the switch duplicates the audio signal from the HDMI input to the monitor and mini-jack out. Generally we just try all of the outputs one of them is correct.  

      Flashing Monitor | Snow screen | Blank Monitor| 


      Here are some common reasons that would cause this is 

      • Bad Cable- Its pretty rare but sometimes the video connection could fail. Try testing this connection directly to a monitor to confirm the connection works outside of the KVM.


      • Bad ports- Either on the KVM or computer side. On the computer side, swap it with another computer if available. On the KVM test the failing port with another computer that is known to be working with the KVM. It the issue is USB(keyboard/mouse) failure, make sure you have the Online Light on, this indicates that the USB connection is active.



      • Non-standard resolution than the other working monitor- Try to change resolution for the problematic monitor to the same as the other working monitor. Its possible that the selected resolution is not supported by the KVM therefore this will result in a blank screen or flickering. 


      • Docking station issues-Its pretty rare to have incompatible docks but it does happen with some older docking stations for example the HP Ultraslim Dock 2013


      • Monitor-Make sure the monitor is set to the right input source.


      May 5, 1:35 PM EDT

      When I connect the monitor directly to the laptop it works fine, however I cannot get a picture when I connect my laptop to my monitor through the KVM that I just purchased. I am using the cables that were provided with the KVM, and the laptop is currently set to 1920x1080. When connected through the KVM the laptop sees the monitor (i.e. I see the monitor version listed in Advanced Display Settings in Windows and when I unplug the monitor from the back of the KVM it disappears from Advanced Display Settings in Windows, plug it in and it comes back). I have windows set to “duplicate” my display. Am I doing something wrong or is this KVM defective?


       4 Port KVM HDMI 2.0

      Laptop: Legion Y520-15IKBN Laptop (Lenovo)

       Lenovo Legion Y520

      Monitor: VP3481 - ViewSonic - 34" IPS LED Curved QHD FreeSync Monitor with HDR


      Ok, ran a few tests with the hardware that I have in the house, here is a summary. . .

      1. Raspberry Pi -> HDMI -> KVM -> HDMI -> Monitor = Works
      2. Surface Pro 4 -> Official Microsoft Surface Mini Display Port to HDMI Dongle model 1819 -> HDMI -> KVM -> HDMI -> Monitor = Works
      3. Surface Pro 4 -> Official Microsoft Surface Dock Model 1749 -> Official Microsoft Surface Mini Display Port to HDMI Dongle model 1819 -> HDMI -> KVM -> HDMI -> Monitor = Works
      4. Surface Pro 4 -> Official Microsoft Surface Mini Display Port to HDMI Dongle model 1553 -> HDMI -> KVM -> HDMI -> Monitor = Works
      5. Surface Laptop 3 -> Official Microsoft Surface USB C to HDMI Dongle model 1857 -> HDMI -> KVM -> HDMI -> Monitor = Works
      6. Lenovo -> HDMI -> Monitor = Works
      7. Lenovo -> USB C -> Targus Dock190 -> HDMI -> KVM -> HDMI -> Monitor = Works
      8. Lenovo -> HDMI -> KVM -> HDMI -> Monitor = Broken


      It appears that the issue is isolated to that Lenovo, when connecting directly to the KVM, however I am confused as to why the port on the Lenovo works when I connect it directly to the monitor bypassing the KVM.

      What do I need | What adapter | Adapter guide 


      Please be aware that a lot of cable do not support bi-directional video transmission.

      Even though you might be able to get all connections to connect right it will still not work!


      For example if you have a VGA out from your laptop and a HDMI in on the KVM, you will need a VGA TO HDMI cable which will only transmit one way from your laptop to the monitor. Let's say the the scenario was reversed and you have an HDMI out from the laptop and a VGA in on your monitor, the same cable will not work.


      We are aware that some generic adapters/converters will not work with the KVM even though its the right adapter and works independently when not connected with the KVM.

      Hence we have complied a list of all the adapter/converters from different video inputs to different outputs and make it as easy as possible for you to pick the right one.

      All the converters/adapters listed in the link are tested in our labs with our devices and are recommended to work well with all of our product line up. Check it out here: Approved adapters