Hi,
Here are some troubleshooting steps that may help.
- Start by making sure that you have the latest BIOS version installed.
- Here's the link for the latest BIOS version:
http/ftp.hp.com/pub/softpaq/sp51501-52000/sp51636.exe
- If the same problem will persist after installing the latest BIOS, do a clean install of the graphics card driver.
- Go to Device Manager and uninstall the graphics card driver.
- Check Programs and Features as well and uninstall anything related to the graphics card.
- Reboot the laptop once the latest driver has been installed and test it again.
- If all these will not work I would suggest reinstalling Windows 10 as well.
- Do also try connecting an external monitor and see if it will display normally or not.