Please try an HDMI 1.4a cable. This should help you with the problem.
I have tried various HDMI cables. Issue is NOT resolved.
I have used the sane setup with Linux - no problem at all. That is definitely an issue with Intel's driver for Windows 10.
2 problems, actually:
1. Intel's driver not having a 4K resolution option
2. Trying to add a custom resolution - it won't let me change color depth. 32-bit is the ONLY option...
Please send me the information below.
System Information: Click Start> Type System Information> Click File>Export> Save File> Attach using Advanced Editor Options
Graphics Report: Right click on desktop> Graphics Properties> Options>Drop Down Menu> Information Center> Save> Attach using Advanced Editor Options.
This information is intended to all Windows 10 users that are experiencing issues with a supported Intel® Graphics Controller (supported graphics)
Re: -NEW- Intel® Iris™, Iris™ Pro, and HD Graphics Production Driver for Windows* 10 64-bit 184.108.40.206.4256
See post # 93
Intel is following Windows 10 graphics issues. Please review the tread below and fulfill the form.
Thanks Mike - I have replied to Bryce on that other driver thread.
Hopefully, a new driver that resolves my issue would be released, soon...