I5-4670k
8gb ram
Asus z97-ar motherboard
I run dual monitor setup using DVI-HDMI and it works fine. I just tested using DVI-HDMI on the TV and same thing happens so it's not only the HDMI port that's the problem. I've tried several different resolutions both with online content and local files and I've tried different formats, Avi, Mkv, Mp4 and so on.