The Computer Screen Is Blank - HP 500 Troubleshooting Manual

The computer screen is blank.

If you have not turned off the computer but the screen is blank, one or more of the following may be the
cause:
●
The computer may be in standby or hibernation.
●
The computer may not be set to display the image on the computer screen.
●
The display switch or the ambient light sensor (select models only) may not be functioning properly.
The suggestions below may help you determine the reason the computer screen is blank.
● To resume from standby or restore from hibernation, briefly press the power button.
Standby and hibernation are energy-saving features that can turn off the display. Standby and
hibernation can be initiated by the system while the computer is in Microsoft® Windows® but is not
in use, or when the computer has reached a low-battery condition. To change these and other
power settings, select Start > Control Panel > Performance and Maintenance > Power Options.
●
To transfer the image to the computer screen, press fn+f4.
On most models, when an optional external display device, such as a monitor, is connected to the
computer, the image can be displayed on the computer screen or the external display, or on both
devices simultaneously. When you press
computer display, one or more external display devices, and simultaneously displays on all devices.
● If the computer has an external display switch, press it to confirm that it moves freely. (The display
switch is normally located on the upper-left corner of the keyboard.) If the computer has a magnetic
display switch, be sure that the computer is not near a strong magnetic field and that no magnetized
items (for example, a magnetized screw driver) are laying on the computer.
●
If the computer has an ambient light sensor (select models only), make sure that the sensor is not
obstructed.
The ambient light sensor is normally located on the lower-left corner of the display.
ENWW
fn+f4 repeatedly, the image alternates among the
The computer screen is blank. 3