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Try pressing Fn + F2 key after turning the computer on. Try to perform power drain. Taka out the battery and unplug the adapter. Presss and hold the power button for 30secs. Put the battery back in and plug in your power adapter then turn on the computer.
Let me know if you will still be getting the same issue.
try to press and hold Fn and F8 - this is to toggle screen setting to ext and back to LCD on laptop. if nothing happens turn off computer by pressing power button, unplug the ac adapter, remove the battery. remvoe residual electricity from computer by pressing power button 10 times. just plug again the ac and leave the battery out. Pres and hold the letter D and while holding that press the power button once and release both of them. it will perform the built in self test on the lcd. if nothing happens, turn off computer. press anf hold Fn and while holding it press power button. it will perform diagnosis on computer. if still nothing happens need to repalce motherboard and LCD.
I turned on my computer and the monitor displayed this message on the screen "going to sleep no input received". I checked the power cord and unplugged it, nothing. No lights are flashing or beeping sounds. The CPU is working just fine, anyone have any idea what to do
Turn on the computer and complete the following steps:
Step 1: Check cable connections
(If you can see the initial HP or Compaq logo screen but later lose the picture, you can skip to Step 2.)
check the video cable connection on the back of the computer and on the monitor. Make sure that it is connected properly and the connecting screws are tight. Turn the monitor off and then back on again (while the computer is on) to see if an image appears.
Some Flat Panel monitors have two similar power input connections placed side-by-side on the back of the monitor, which sometimes allows them to get confused for one another.
One connector is used to supply power to the speakers with a separate power cord, while the other connector is used for the monitor's power adapter.
Ensure that you have the monitor's power adapter cord plugged into the power connector and not the speaker connector.
After you have reconnected the power cord, turn on the monitor (while the computer is on) to see if an image appears. If there is still no image, continue to the next Step.
Step 2: Resetting the monitor
At first setup, or under certain signal conditions, the monitor may not be able to switch to a new display resolution. Do NOT shut down or restart the computer. Instead, perform the following steps:
Turn off the monitor using the Power button on the front.
If the Power button does not respond, unplug the power cord from the back of monitor and wait five seconds.
Plug the power cord back in.
You should see the image from the computer on the screen.