Question: "Why can not my laptop hp. Play on and then off. Sometimes hp pavilion dv9000 power supply is turned on for a while, but the screen is black. What?"
Solution:
This problem could be due to the presence of static or malfunction of the internal hardware of the notebook. To isolate the exact cause of the problem, perform the following steps.
Step 1: Hard Reset
To perform a hard reset, please follow the following steps:
1. Disconnect the HP Pavilion dv9000 laptop charger and withdraw from any port replicator or docking station.
2. Remove the battery from the HP Pavilion dv9000 notebook battery compartment.
3. Press and hold the power button for 20 seconds.
4. Insert the HP dv9000 battery and connect the HP AC adapter back into the laptop.
5. Press the power button to turn on the laptop again.
This download static charges on the laptop. Now check if the laptop works well or not. However, if the laptop is on and if the screen remains blank and then connect an external monitor to your laptop and check the screen on it.
Step 2: external monitor
You can follow the steps below to connect an external monitor to your laptop.
1. Turn off the laptop.
2. Connect the external display monitor to the monitor port on the back or side of your computer.
3. Connect the monitor to a power source and turn it on.
4. Press the power button to turn on the computer.
At this time, please follow the instructions below to connect the display to external monitor:
The portable video card supports three modes. Built in the display only, external video, and both at the same time mirror (). If you are not seeing the image in the desired device (s), video card laptop is probably otherwise. Press FN + F4 to cycle through display options: the laptop screen, external monitor, both.
Pressing FN + F4 once, the external monitor will not display and portable LCD screen.
Pressing FN + F4 twice, the external monitor will be displayed and there will be some shadows on the laptop LCD screen.
Pressing FN + F4 three times, both laptop LCD and external display.
If the problem persists in the external monitor, then this could be due to defective video card in the laptop. However, if the screen on the external monitor is fine, then the problem is with the LCD display panel of the notebook.
Incase, if the laptop is off, then the problem is caused by an internal hardware malfunction. In all cases, the diagnosis requires a detailed notebook on the ground by a service technician.
