VGA and dual-link DVI require active adapters, which do not require dual-mode and are powered by either the DisplayPort connector directly or an external power adaptor (see compatibility with HDMI, DVI and VGA).
VGA and dual-link DVI require active adapters (see compatibility with HDMI, DVI and VGA). Active adapters do not require dual-mode. Active adapters are powered by either the DisplayPort connector directly. Active adapters are powered by an external power adaptor.