Troubleshooting Guide: DisplayPort No Signal But HDMI Works Solutions - Hollyland
DisplayPort 1.4 AOC cable, 8K@60Hz, RGB 4:4:4, 32.4Gbps, Slim, Flexible 4-Core optical Fiber with no signal loss (10m/32ft. - 50m/164ft.) - NWCA Inc.
DisplayPort - Wikipedia
DisplayPort to HDMI not working for ED272 — Acer Community
No signal for AOC G2460VQ6 that connected with Displayport to HDMI : r/mac
DP and HDMI no signal, no graphical issues in terms of flickering, tearing, or weird spots. Monitor will just stop displaying. Sadly I do not have another system to test hardware. :