How do I fix my monitor Input Signal Out of range? To fix a monitor input signal out of range problem adjust the computer’s resolution to a compatible setting with the display.

Fix: NVIDIA custom resolution not supported by your display 2] Change the resolution on the Display/Monitor settings This follows if changing the resolution on your Windows 11/10 PC – you can ...

As a result, this impedes the browser from finding the source and therefore prompts the source not supported error while trying to cast content to your TV or monitor via Chromecast.