HDCP is likely the culprit and is a form of content protection. If you’re using a PlayStation 4 or 5 first connect your console to a TV and navigate to Settings -> System -> HDMI section of the PlayStation interface, and turn off Enable HDCP. Other devices generally have HDCP off until specific video apps are launched. We’ve heard theres an unofficial firmware update floating around that may workaround this but we shouldn’t really encourage you to do that...