What monitors are the best or recommended for Advanced DDM class KVM switches?

As not a maker of any monitors, we cannot vouch for the accuracy or reliability of the makers of all monitors.  However, we had been tested many monitors with our advanced DDM KVM switches, so we can provide general guidelines for picking monitors best for KVM switch setups and applications. 

When selecting a monitor to use with an advanced KVM switch, it is important to choose a monitor that can pass video EDID correctly. EDID (Extended Display Identification Data) is a standard used by monitors to communicate their capabilities to the computer or KVM switch.

Some monitors may have issues passing video EDID correctly, which can result in video issues when used with advanced KVM switches. These issues can include a blank screen, a distorted image, or incorrect resolution or color settings.

To avoid potential video issues, it is recommended to choose monitors that are known to work well with advanced KVM switches. Some manufacturers also provide a list of recommended monitors for their KVM switches.

Additionally, it is important to ensure that the KVM switch supports the resolutions and refresh rates of the monitors that will be connected to it. If the KVM switch does not support the monitor's resolution or refresh rate, it may not work properly.

In summary, when selecting a monitor to use with an advanced KVM switch, it is important to choose a monitor that can pass video EDID correctly and ensure that the KVM switch supports the monitor's resolution and refresh rate.


These guidelines are intended to ensure that you can accurately check the specifications of your monitors and make any necessary adjustments without any interference or compatibility issues caused by additional features or devices.

  1. Disable KVM, PIP, and PBP Functions: If your monitor is equipped with a KVM switch or PIP/PBP functions with multi-video inputs, it's important to disable these features. This is because using these functions may affect the monitor's ability to accurately display the input source's specifications, which can lead to inaccurate readings when checking the monitor's specs.

  2. Don't use USB ports on Monitors: Additionally, you should avoid plugging any sharing devices into the USB ports on your monitors or any USB hub ports on them. Instead, plug all sharing devices directly into the external KVM switches. This will help to prevent any signal interference or loss caused by the monitors' USB ports.

  3. Disable MST Setup: If your monitors have multi-DisplayPort video ports with DP-in and DP-out ports, you should disable the MST setup of the monitors. This is because the MST protocol is not compatible with the video DDM protocol built-in on advanced DDM-class KVM switches. You should also avoid plugging any cables into the DP-out port.

By following these guidelines, you can ensure that your monitors are accurately displaying the input source's specifications and that there are no additional features or devices causing any compatibility issues. This will allow you to make informed decisions when checking the specs of your monitors or making any necessary adjustments.

Monitors we had tested : (last updated 12/16/2023)

Top 5K monitors :

 LG UltraGear 49GR85DC (5120x1440/ 240hz), DP 1.4 (DSC) Link: https://amzn.to/3v18yiv
Dell UltraSharp U4924DW DualQHD (5120x1440/60z), DP 1.4  Link:https://amzn.to/3R0ict0

    Specific Monitors to be avoided and notes:

    The following list describes monitors that have been tested and reported by users with the variability in DDC implementation. 


       The list monitors including major brands' models :

      • Apple Cinema Display A1082, 
      • Asus MG279
      • Asus PG329Q, PG279Q
      • BenQ GW2480
      • Dell AW3418DW, Dell AW3423DWF, Dell P2411, Dell P2715Q
      • Dell S3422DWG, Dell Utrasharp 1905FP, Dell U2413, Dell U2518D
      • Dell U3011, Dell Utrasharp U3415W, U3818DW
      • Iiyama PL2792Q
      • Lenovo ThinkVision X1, L22e-20
      • LG 22MP48D-P, LG 27MD5KL UltraFine, LG 29UM69G, LG HDR 4K, 
    • LG 27BN88U 27UL850 27GN950-B 29UM69G 34Wk500-P 34WN80C-B 34UM88P 38WN95C

    • Phillip 328P6VU, BDM3270, BDN4037U
    • Samsung LC49G95T Odyssey G9, U32H750
    • Viewsonic XG2703-GS
    • Acer Predator XB323QK
    • Acer Predator XB273K (144hz), better with Fiber Optic DP cables