Analog VGA is being replaced with DVI-D and HDMI on many devices nowadays, so it would be nice to port projects from VGA to DVI-D. To address this, he’s come up with a simple DVI-D ...

a DVI-to-HDMI adapter cable is used to connect the video. The audio must be cabled separately as DVI transfers only video. The HDMI circuit detects the DVI signals and switches to the DVI protocol.

The same display standard must be in the graphics card (display adapter ... early PCs, a VGA port is sometimes found in a monitor along with the more up-to-date HDMI and DisplayPort interfaces.