In this case, for example, if our display device is capable of only displaying 4K display resolution and we are using drivers on laptop or PC of Full HD or HD resolution, the system will not display any output. The driver acts a bridge between two devices and helps them patch up with one another. The second most common reason is outdated device drivers different display device needs different sets of drivers to connect to another set of devices. HDMI no signal error usually occurs due to faulty HDMI cable or un-supported type of HDMI cable or speed of the data transmission of the cable to the screen is not good enough for display. Usually, when we plug laptop or PC to a TV screen, it displays “HDMI no signal” message, which means the display input (TV) is not able to detect any incoming display signal to broadcast on the screen. In this article, we will talk more about different scenarios in which such a problem occurs and how to fix them. Sometimes the fault lies with the HDMI cable, OS issue or driver etc. There are instances where when we want to connect our laptop or PC to a bigger screen TV or a monitor via HDMI cables, but due to hardware or software issue, we are unable to get display on TV or monitor.

Hdmi duplicate screen not working