In regards with your inquiry bear in mind that Intel drivers are generics, if these drivers did not work properly you may try the graphics drivers release by Asus for your motherboard, these drivers have been customized specifically for your motherboard specifications.
Another recommendation for HDMI ports are:
* Avoid the use of HDMI converters
* Use the latest driver for your display.
* Use a straight HDMI cable
* You may check if there is a BIOS issue with HDMI displays.