The Computer Screen Is Blank - HP 430239-001 Getting Started

The computer screen is blank

If the computer is on but the screen is blank, the computer may be
in the Sleep state or in Hibernation or may not be set to display
the image on the computer screen.
Try the suggestions below to resolve the issue:
■
To exit Sleep or Hibernation, briefly press the power button.
Sleep and Hibernation are energy-saving features that can
turn off the display. Sleep and Hibernation can be initiated by
the system while the computer is on but not in use, or when
the computer has reached a low battery level. To change these
and other power settings, select Start > Control Panel >
System and Maintenance > Power Options.
■
To transfer the image to the computer screen, press
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
fn+f4
display, one or more external display devices, and
simultaneous displays on all devices.
Getting Started
repeatedly, the image alternates among the computer
Troubleshooting
.
fn+f4
3–3