Advanced Display Options 9
Display Control Tab
Force Single Display Operation, when using a dual display video card,
causes all display modes to appear as a single list of supported resolutions
in the Apple® Displays Properties.
Only one display is on when this feature is enabled. The default setting is
Disabled.
Enable GTF Modes for CRT provides a list of all available modes for
your monitor based on the Generalized Timing Formula standard. This
feature is enabled by default.
Enable ATI “Valid” and “Safe” flags in mode list, when enabled, lets the
video card to determine which video modes are valid and safe.
Enable Hot Plug Detection lets the operating system automatically detect
when a display is connected to the computer and activates the “Detect
Displays” button. This removes the need to restart the computer after
attaching a secondary display.
Default button undoes all changes and sets everything to the factory default
settings.
Apply button causes all the selected options to be enabled at one time.