Vixlw HDMI capture dongle couldn't be simpler to use: Plug an HDMI lead from the input into the dongle, connect the dongle to the computer using a free USB-A or USB-C port (a USB-A to USB-C converter ...
reports that it is possible to reproduce text on a computer screen by eavesdropping on its HDMI cable. Santiago Fernández Emilio Martínez, Gabriel Varela, and Pablo Musé Federico Larroca ...
Misconfigured settings in your display control panel can make your computer screen go black and white when HDMI is plugged in. Reset these settings and see if the screen turns back to normal.