HDMI ip core not working at 1080p 60hz resolution

HI, There are couple of things that you can try out 1) Try compile design with latest Quartus version to see if the issue go away. There could be some bugs that have been fixed with newer Quartus version 2) Have you try with HDMI example design instead ? https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/an/an776.pdf 3) Have you validated to ensure HDMI IP VID clk and LS clk are configured correctly with the right frequency ? Thanks. Regards, dlim