Blank screen after plugging in HDMI

Hi,
I connected my laptop to my TV with a HDMI cable (which I've used many times before) but nothing came up on the TV, so I clicked on the display settings using F4 and chose the duplicate option. At this point my laptop screen went completely blank and I cannot get it back.
I've tried replacing the battery as well as win + P and nothing has worked. Any suggestions?
Thanks

Hi @Vicstar84
Welcome to the HP Support Forums!
I understand that you are getting a blank display after using F4 and selecting the duplicate option. I am happy to help.
My first recommendation would be to try to do a hard reset on the notebook. See the following:
Performing a Hard Reset or Forced Reset
Other than that you can try this, if the display does not come back.
Troubleshooting Black Screen Displays with No Error Messages During Startup or Boot
Here are some other sources I found that may be helpful to you.
Resolving Problems with Notebook Displays (Windows 7 and Windows 8)
Resolving Problems with the Brightness of the Display
Diagnosing a Liquid Crystal Display (LCD) for Damage
Malygris1
I work on behalf of HP
Please click Accept as Solution if you feel my post solved your issue, it will help others find the solution.
Click Kudos Thumbs Up on the right to say “Thanks” for helping!

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