Last updated: 10/21/2025
Understanding Monitor Compatibility with Your KVM Switch: Your Secure KVM switch provides seamless display connectivity, but it’s important to ensure your monitor settings align with the KVM’s supported resolutions and refresh rates to avoid display issues.
This covers the following products:
- Universal 2nd Generation SKVMs
- Modular SKVMs
Universal Secure KVM Resolution and Refresh Rate Support
- Your Universal Secure KVM supports resolutions up to 4K at 60Hz refresh rate.
Modular Secure KVM Resolution and Refresh Rate Support
- Your Modular Secure KVM supports up to 4K at 30Hz refresh rate, as well as lower resolutions that support 60Hz.
Potential Display Issues Due to Unsupported Refresh Rates
If your monitor’s refresh rate exceeds the KVM’s maximum supported rate, the monitor may be detected but fail to display an image. This occurs because the KVM cannot process refresh rates beyond its hardware limits.
Impact of FreeSync and G-Sync on Secure KVM Performance
FreeSync and G-Sync are adaptive refresh rate technologies that synchronize the monitor’s refresh rate with the GPU’s output to reduce screen tearing and stuttering. However, when used with a Secure KVM, these dynamic refresh rates can create compatibility issues—especially when refresh rates fluctuate—resulting in intermittent or complete display loss.
How the KVM Handles EDID Information
- The KVM gathers EDID (Extended Display Identification Data) from the monitor upon startup.
- This EDID information remains stored while the KVM is powered on.
- The KVM only re-reads EDID when it is power-cycled.
- EDID data is static—if the monitor’s refresh rate changes dynamically, the KVM will not automatically adapt, which may result in a blank screen or display loss.
Resolving Display Issues
|
To ensure optimal display performance and maintain signal stability:
|
