Dual/Triple Monitor KVM Switch Black Screen Troubleshooting cross testing

Cross-testing method: At least one of the input sources can display properly.

Step 1. Please swap the position of the port where the input source is connected to the KVM(keep the cable unchanged)Cross testing is shown in the figure.

Before the cross-test, PC1 faced the issue of a black screen, while PC2's display worked properly.

PC1--->KVM PC1 Input--->(Black monitor)

PC2--->KVM PC2 Input---> (The working monitor )

Cross testing KVM switch input ports.JPEG
Cross test product input interface.jpg

Step 2. Please swap the input source cables connected to the computer. (keep the input source and product port unchanged)Cross testing is shown in the figure.

Before: Assuming that before conducting the cross-experiment, PC1 shows a black monitor, PC2 is the working monitor.

PC1--->Input cable1 --->(Black monitor

PC2--->Input cable2---> (The working monitor

exchange cables.jpg
Cross testing KVM switch input cables.jpg

If all of the steps above cannot help you locate and resolve the problem, please contact TESmart Customer Support for further assistance. Briefly mention the steps that you’ve already tried for a faster solution.


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