Dell U2913WM manual Perform Auto Adjust via OSD

		Ensure that the correct input source is selected via the Input Source Select button.
No Video/Power LED on	No picture or no brightness	Increase brightness & contrast controls via OSD.
		Perform monitor self-test feature check.
		Check for bent or broken pins in the video cable connector.
		Run the built-in diagnostics.
		Ensure that the correct input source is selected via the Input Source Select button.
Poor Focus	Picture is fuzzy, blurry, or ghosting	Perform Auto Adjust via OSD.
		Adjust the Phase and Pixel Clock controls via OSD.
		Eliminate video extension cables.
		Reset the monitor to Factory Settings.
		Change the video resolution to the correct aspect ratio (16:9).
Shaky/Jittery Video	Wavy picture or fine movement	Perform Auto Adjust via OSD.
		Adjust the Phase and Pixel Clock controls via OSD.
		Reset the monitor to Factory Settings.
		Check environmental factors.
		Relocate the monitor and test in another room.
		NOTE: If you’re using DVI connection, ensure that a Dual Link DVI cable is used (Supplied together with
		the monitor).
		Check for loose connection. Unplug & reconnect if required.
Missing Pixels	LCD screen has spots	Cycle power On-Off.
		Pixel that is permanently Off is a natural defect that can occur in LCD technology.
		For more information on Dell Monitor Quality and Pixel Policy, see Dell Support site at:
		www.dell.com/support/monitors.
Stuck-on Pixels	LCD screen has bright spots	Cycle power On-Off.
		Pixel that is permanently On is a natural defect that can occur in LCD technology.
		For more information on Dell Monitor Quality and Pixel Policy, see Dell Support site at:
		www.dell.com/support/monitors.
Brightness Problems	Picture too dim or too bright	Reset the monitor to Factory Settings.
		Auto Adjust via OSD.
		Adjust brightness & contrast controls via OSD.
Geometric Distortion	Screen not centered correctly	Reset the monitor to Factory Settings.
		Auto Adjust via OSD.
		Adjust horizontal & vertical controls via OSD.
		NOTE: When using DVI-D input, the positioning adjustments are not available.
Horizontal/Vertical Lines	Screen has one or more lines	Reset the monitor to Factory Settings.
		Perform Auto Adjust via OSD.
		Adjust Phase and Pixel Clock controls via OSD.
		Perform monitor self-test feature check and determine if these lines are also in self-test mode.
		Check for bent or broken pins in the video cable connector.
		Run the built-in diagnostics.
		NOTE: When using DVI-D input, the Pixel Clock and Phase adjustments are not available.
		NOTE: If you’re using DVI connection, ensure that a Dual Link DVI cable is used (Supplied together
		with the monitor).
		Check for loose connection. Unplug & reconnect if required.