Gigabyte GV-NX98X1GHI-B Manual - Page 23

(2) As one large horizontal desktop (Horizontal span) Horizontal Span mode indicates that both displays in the display pair function as one wide virtual desktop. The width of each display is half the width of the total virtual desktop width. (3) As one large vertical desktop (Vertical span) Vertical Span mode indicates that both displays in the display pair function as one tall virtual desktop. The height of each display is half the height of the total virtual desktop height. Horizontal Span Mode (4) Configured independently from each other (Dualview) Dualview mode indicates that both displays in the display pair function as one virtual desktop. Unlike Horizontal Span or Vertical Span mode, Dualview treats each display as a separate device. This means that the taskbar will not be stretched across displays and 3D applications are not accelerated as efficiently as when the application spans displays. Vertical Span Mode Dualview Mode - 23 - Software Installation