However, there are several steps that you can take to troubleshoot the problem, such as plugging the splitter into an HDMI port, ensuring that all devices are turned on, checking the cable connections, trying different HDMI cables, and using a passive switch with short cables. In this article, we'll explore the common reasons why your HDMI splitter might not be working and provide you with troubleshooting tips to get it up and running. Before we dive into the troubleshooting process, it's essential to understand how HDMI splitters work. HDCP, or High-bandwidth Digital Content Protection, is a protocol. But occasionally, computers fail to detect the attached splitter and secondary displays, preventing the use of the full multi-monitor configuration.
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