It will connect OK to the monitor over a DVI->HDMI cable @ 3840x2160 @ 30Hz. 30Hz is fine with me-- no gaming or video playing on this PC.
But I want to connect it using a mini-DisplayPort connection (not HDMI) because I want to run the video signal through a StarTech 4K KVM Switch which only has mini-DP inputs. That's where I'm getting stuck.
What's the right cable and/or adapter to connect my video card (which has DVI and HDMI outputs) to a mini-DP connection?
I tried a Benfei 4K Mini DisplayPort to HDMI cable which didn't work. Not only did the monitor not detect a signal when running through the KVM switch, it also didn't work when I directly connected my PC to the monitor. This cable also didn't work when I tried connecting via the HDMI output of my MacBook Pro, so I suspect that the problem is the cable (or the cable+monitor combination) not my video card. FWIW, my MacBook Pro works fine mini-DP-to-mini-DP cable to this monitor, either directly connected or through the KVM switch.
So, should I:
- try a different brand of HDMI-to-Mini-DP cable, and if so what should I look for?
- try a DVI-to-mini-DP cable instead?
- get an active adapter between HDMI or DVI to mini-DP?
Finally, do cables and adapters have "sides", meaning that a Mini-DP to HDMI cable is different from an HDMI to Mini-DP cable?