A simple test pattern on HDMI display working at 1280x720p (60.7Hz) using an Arty A7 dev board (Artix A7T35 FPGA)
The code is very much based on projf-explore and hdmi_pmod with a few tweaks of my own.
This code is nowhere near as usable as my Arty VGA project and is mainly checked in here to save me from losing it.
If you want to get started, look at Alexander Wranovsky's HackadayIO Project.
There's a short video clip of this code working on a smaller screen on YouTube.
Here's what it looks like:
