HP G5040EA Troubleshooting - Page 7
The computer screen is blank., repeatedly, the image alternates among - drivers
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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 fn+f4 repeatedly, the image alternates among the 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 The computer screen is blank. 3