HP Monitor Troubleshooting: Common Problems and Solutions for Your Display

A Troubleshooting

Solving Common Problems

The following table lists possible problems, the possible cause of each problem, and the recommended solutions.

Problem	Possible Cause	Solution
Screen is blank.	Power cord is disconnected.	Connect the power cord.
	Power switch on front panel of the	Press the front panel power button.
	monitor is turned off.
	Master power switch on rear panel	Turn the master power switch to On.
	of the monitor is turned Off.
	Video cable is improperly	Connect the video cable properly. Refer to Chapter 3,
	connected.	Setting Up the Monitor on page 5 for more information.
	Screen blanking is active.	Press any key on the keyboard or move the mouse to
		inactivate the screen blanking utility.
Image appears blurred,	Brightness and contrast are too low.	Press the −/Auto button on the front panel. If this does not
indistinct, or too dark.		correct the image, press the Menu button to open the Basic
		OSD Menu, and adjust the brightness and contrast scales
		as needed.
Image is not centered	Position may need adjustment.	Press the Menu button to access the OSD menu. Select
		Image Control/Horizontal Position or Vertical Position to
		adjust the horizontal or vertical position of the image.
Check Video Cable is	Monitor video cable is	Connect the DVI-D signal cable to the DVI-D connector on
displayed on screen.	disconnected.	the computer, or the VGA signal cable to the VGA
		connector on the computer. Be sure that the computer
		power is off while connecting the video cable.
Out of Range. Set Monitor	Video resolution and/or refresh rate	Restart the computer and enter Safe Mode. Change the
to 1680 × 1050 @ 75Hz is	are set higher than what the monitor	settings to a supported setting (see Table B-2 L2045w
displayed on screen.	supports.	Model Factory Preset Modes on page 34 ). Restart the
		computer so that the new settings take effect.
HP Display LiteSaver	The Activity Extension time has not	The default Activity Extension value is set to 10 minutes.
doesn't turn off the monitor	elapsed.	The HP Display LiteSaver will wait to detect no input or
screen.		movement from the keyboard or mouse for 10 consecutive
		minutes after the Display Off time has passed, before the
		monitor enters into low-power mode. For example, if the
		Display Off time is set to 5 minutes from the current time
		and the Activity Extension is set to 10 minutes, the HP
		Display LiteSaver will not actually turn off the display until
		10 minutes of inactivity has elapsed, even though the
		Display Off time is 5 minutes from now.

Solving Common Problems 31