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