In such cases, notifications on your Windows PC screen ... then the port is damaged. You can also try the device on another TV to check if it is at fault. If you use USB- C to HDMI or USB-C ...
Use the 4K HDMI port to connect to an external monitor, USB-C with power-delivery charging to quickly juice up devices, USB-A to transfer data, and RJ-45 for a wired connection to the internet ...