As title says, I have an i7 6700k (HD 530) processor, which works fine at 4k@60Hz using HDMI, but I must disable Intel Display Audio from Device Manager otherwise it starts to flicker really bad and sometimes also crashes my system.
By lowering the refresh rate and keeping it at 4k@30Hz I can successfully enable the HDMI audio and everything works good, except for the fact that @30Hz is unsable.
I understand that you are having problems with the graphics and the audio.
Regarding this, To better assist you with your request, I will need to check some information about your computer. Please follow these steps:
1. In the keyboard, press WinLogo key + R.
2. In the Run box please type dxdiag and hit Enter.
3. Click on Save All Information (save it in your desktop).
4. Attach the report to this thread.