HP Performance ZR2440w 24 XW477A8#ABA, 27 XW476A4#ABA manual

Table A-1Common Problems (continued)

Problem	Possible Cause	Solution
The screen displays the message,	Monitor video cable is	Connect the appropriate video cable (DisplayPort,
Check Video Cable.	disconnected or loose.	DVI-D, HDMI, or VGA) between the computer and
		monitor. Be sure that the computer power is off
		while connecting the video cable.

The screen displays the message,	Video resolution and/or
Input Signal Out of Range...	refresh rate are set higher than
	what the monitor supports.

Restart the computer and enter Safe Mode (on Windows systems, do this by holding down the F8 key during boot). Change the settings to a supported setting (see Preset Display Resolutions on page 46). Restart the computer so that the new settings take effect.

The monitor is off but it did not seem to	The monitor's power saving	In the monitor's OSD menu, select Management
enter into a low-power sleep mode.	control is disabled.	> Power Saver. The control should be set to On
		to allow the monitor to enter into low-power mode.
The screen displays the message, OSD	The monitor's OSD Lockout	Press and hold the Menu button for 10 seconds to
Lockout.	function is enabled.	unlock the OSD function.
Power Button Lockout is	The monitor's Power Button	Press and hold the Power button for 10 seconds to
displayed.	Lockout function is enabled.	unlock the power button function.

Online Technical Support

For online access to technical support information, self-solve tools, online assistance, community forums of IT experts, broad multivendor knowledge base, and monitoring and diagnostic tools, go to http://www.hp.com/support

Preparing to Call Technical Support

If you cannot solve a problem using the troubleshooting tips in this section, you may need to call technical support. Have the following information available when you call:

●The monitor model and serial numbers. If your monitor has a pull-out information card, these numbers are on it

●Purchase date on invoice

●Conditions under which the problem occurred

●Error messages received

●Hardware configuration

●Name and version of the hardware and software you are using

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