[GTALUG] Intel GPU support for HDMI 2.0 (UltraHD)

[D. Hugh Redelmeier]

It seems that 7th gen and later Intel processors can support HDMI 2.0, but 
only with an external "LSPCON" (Level Shifter and Protocol CONverter) 
component on the motherboard.

See 
<https://www.intel.com/content/dam/support/us/en/documents/graphics/HDR_Intel_Graphics_TechWhitePaper.pdf>

As I've mentioned before, going through DisplayPort also works and does 
not require a LSPCON.