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HP Recommended
HP EliteBook 840 G3 Base Model Notebook PC

Turned on Laptop but the screen is black the lights under the keyboard, caps lock, and power button still turns on and the fans but the display is black. Been turning it back off and on around 3 times now but nothing's happening.

1 REPLY 1
HP Recommended

Here are the troubleshooting steps for your system

https://support.hp.com/us-en/product/hp-elitebook-840-g3-notebook-pc/7815294/document/ish_3974055-39...

 

Your laptop has VGA and DP port.  Try borrowing an external monitor and see if it works.

You can also get a cheap DisplayPort to HDMI adapter and use a TV set.


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