While I agree with what you wrote > [...] GPUs that run HDMI over DVI [...] I thought HDMI and DVI use the same signalling (at least the 'digital part' of DVI

While I agree with what you wrote > [...] GPUs that run HDMI over DVI [...] I thought HDMI and DVI use the same signalling (at least the 'digital part' of DVI, was it DVI-D?), just over a different connector? In my memory only the connectors competed for adoption, and Home Entertainment industry opted for HDMI and the PC-industry opted for DVI, while the signalling was not contested (besides DVI also being able to carry analog signalling with full spin-out, and HDMI carrying audio instead). My memory might not serve me well here though. I never thought HDMI would win :( but it makes sense I guess - Computers/their use changed :(