HP 2011XI, XP599AAABA manual Default setting is off. DCR automatically

Icon	Main Menu Options	Sub-menu Options	Description
	Image Control		Adjusts the screen image.
		Auto-Adjustment	Automatically adjust the screen image.
			NOTE: This item can only be used with
			a VGA input signal.
		Clock	Minimizes any vertical bars or strips
			visible on the screen background.
			Adjusting the Clock also changes the
			horizontal screen image (VGA input
			only).
		Clock Phase	Adjusts the focus of the display. This
			adjustment allows you to remove
			horizontal noise, and clear or sharpen
			the image of characters (VGA input
			only).
		Horizontal Position	Adjusts the position of the screen image
			left and right.
		Vertical Position	Adjusts the position of the screen image
			up and down.
		Custom Scaling	Selects the method for formatting
			information displayed on the monitor.
			Select:
			●	Fill to Screen — image fills the
				entire screen and might look
				distorted or elongated because of
				non-proportional scaling of height
				and width.
			●	Fill to Aspect Ratio — image is
				sized to fit the screen and maintains
				proportional image.
		Sharpness	Adjusts the screen image to look sharper
			or softer.
		OverDrive (select models)	Turns OverDrive on or off. The factory
			default is Off.
		Dynamic Contrast Ratio	Sets the DCR setting on or off. The factory
			default setting is off. DCR automatically
			adjusts the balance between white and
			black levels to provide you with an
			optimal image.
	OSD Control		Adjusts the position of the OSD menu on
			the screen.
		Horizontal OSD Position	Changes the viewing position of the OSD
			menu to the left or right area of the
			screen.

Using the On-Screen Display (OSD) 19