Question about HP Computers & Internet
From the Windows desktop, hold the fn key and press the f7 key to increase or the f8 key to decrease the brightness of the display. If using the function keys does not resolve the problem and you have a Lid Actuator on your particular model, check the movement of the Lid Actuator switch to determine that it moves freely and is not stuck.
The key numbers ( f7 or f8 ) may vary depending on the notebook PC; however, the images on the keys should be familiar.
Check the movement of the Lid Actuator switch
The Lid Actuator switch is available on some models. It is a small button or switch located above the keyboard near the hinge for the LCD. Pressing this switch when the computer is on may turn the notebook display off, or it may cause the notebook to enter a different power state.
Press the switch two to three times while observing the display. If the display does not return to normal brightness when the switch is released, the switch may be sticking and need to be repaired. Contact HP service and support for further assistance.
If the display turns off when the switch is pressed, the power management function may be set to hibernate or turn off when the lid is closed.
Install updated BIOS and drivers
To resolve certain hardware and software issues, use HP Health Check to automatically search the HP web site for an updated BIOS as well as any updated software and drivers.
To launch HP Health Check, follow the steps below.
Posted on Nov 15, 2008
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Posted on Jan 02, 2017
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