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Your device may contain several HDMI output ports. The port should be in good working condition.

Confirm the status of the output port.

You can try using an extra cable and confirm whether the current one is problematic.

Inspect the condition of the HDMI cable.

Use the following guide to inspect for damaged hardware devices Solution You should make sure this is not the problem before searching for other causatives.

This is the first suspicion that should be confirmed to confirm whether it’s the real cause. Source: Problem 1: Damaged hardware devices