[bombela]

I have this monochrome hi-res LCD with an HDMI controller for some lithography project.

The EDID advertises YCBR colors. But in reality it only accepts RGB.

The amdgpu driver in my AMD laptop is the only machine I own that actually sends YCBR, and I had to add an EDID override for it. It's a pain to do. It's confusing. And then the HDMI port is now only capable this specific screen.

Thankfully the amdgpu driver has now be fitted with few knobs allowing you to override some of the settings at runtime.