Nvidia's similar G-Sync technology, however, doesn't always work over HDMI—on many monitors, it’s DisplayPort-only. When shopping for a DisplayPort cable, I recommend picking one from ...
If a monitor only gives you the choice between, say, HDMI 2.0 and DisplayPort 1.2, HDMI could be the way to go for HDR support, as long as all your devices support the HDMI version.
Going through the pinout with a broken hence sacrificial HDMI cable in hand ... employed the Linux capability called “virtual monitors”, and found out about an interesting peculiarity ...