They’re digital signals that either ‘work’ so the monitor displays an image or ‘don’t work’ so that it doesn’t. You may have heard people say that the image quality of HDMI (High-Definition Multimedia Interface), DP (Display Port) and the now outdated DVI (Digital Visual Interface) are equivalent. Users with Intel graphics chipsets should alternatively look for an option called ‘ Quantization Range‘ in the Intel Graphics Control Panel and ensure it is set to ‘Full Range’.
Refer to the Nvidia section on this, specifically the second half of “Second solution: setting a custom resolution” where the process of using CRU is mentioned. For mobile GPUs or other graphics solutions, including those from Intel, it is recommended that a custom resolution is set using CRU (Custom Resolution Utility). This article provides guidance for users with discrete desktop GPUs from Nvidia and AMD for correcting colour signal issues that can occur via both HDMI and DisplayPort.
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