I am sorry you are having this problem with the HD 4600 controller but let me help you.
It is important to say that I have been testing the an 8 series Intel® board with the Intel® Core i7-4770k with HDMI connection and I have not been able to reproduce the problem you have therefore I think this is an isolated issue.
There are some troubleshooting steps I would like you to try:
- Update the BIOS of your motherboard to the latest.
- Install the latest graphics driver update for your controller. It can be downloaded here:
If you find problems during the installation of the driver, try the steps mentioned here: