Has anybody managed to get 4K @ 60Hz to an external TV or monitor with the MiniBook? I have tried several adapters, some even modify the gamma of my monitor so that I have to unplug it from electricity to restore the color! The only adapter I found that works without hassle (but still outputs only 4K @ 30Hz) is the apple USB-C dongle. I have tried both the mini-HDMI and the USB-C output. My USB-C to DP cable causes instability - screen goes on and off rpeatedly without a stable image.
Mayne @Management can help?