There is a possibility that an outdated and corrupted display adapter driver is causing the problem. You can download the display adapter driver from its manufacturer ...
I have bought a HDMI to Displayport cable on the assumption that it would just work, but it doesn't. As this is my first foray in to the displayport territory I am stumped. I am using a Dell U2412M ...
It's not a BIOS bug: How swapping to a DisplayPort 2.1b cable may fix your PC's boot loops ...
I bought the wrong HDMI-to-USB-C cable, and it taught me how direction, port support, and cable type actually matter.