HP L1710, L1950, L1750, L1910 manual Troubleshooting, Solving Common Problems

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 monitor is turned off.

Press the front panel power button.

NOTE: If pressing the power button has no effect, press and hold the power button for 10 seconds to disable the power button lock-out feature.

	Video cable is improperly	Connect the video cable properly. Refer to Chapter
	connected.	3, 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, indistinct, or	Brightness and contrast are	Press the —/Adjustbutton on the front panel. If this
too dark.	too low.	does not correct the image, press the Menu button
		to open the 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 displayed on	Monitor video cable is	Connect the DVI-D signal cable to the DVI connector
screen.	disconnected.	on the computer (select models), or the VGA cable
		to the VGA connector on the computer. Be sure that
		the computer power is off while connecting the video
		cable.
Input Signal Out of Range. Change	Video resolution and/or refresh	Restart the computer and enter Safe Mode. Change
Settings to 1280 x 1024 @ 60Hz or	rate are set higher than what	the settings to a supported setting (see Recognizing
Input Signal Out of Range. Change	the monitor supports.	Preset Display Resolutions on page 42). Restart
Settings to 1440 x 900 @ 60Hz is		the computer so that the new settings take effect.
displayed on screen.
HP Display LiteSaver doesn't turn off	The Activity Extension time	The default Activity Extension value is set to 10
the monitor screen.	has not elapsed.	minutes. The HP Display LiteSaver will wait to detect
		no input or 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

Solving Common Problems 35