Almost impossible on latest HP bios files 2016 up, due to security issues…RSA and so on, the main issue is the flash mod (the mod itself with H2O tools/Hex edit could be achieved), even with a programmer only a small percentage has success.
Wait for other user opinions.
"Some disadvantages of using GOP(UEFI vga driver) :
- OS or OS applications lose capability of
changing display resolution and
configuration if OS high performance
display driver is not installed or functional. - Some common mobile functionalities like
LCD backlight adjustment are currently not
supported, and display switch in the preOS time is more complex to support."
EDIT: If the bios current on the system is an old one, there’s a chance of mod and be flashed. Now im not losing my time with this, id the bios vendor and search for the correct tools in order to check what hidden that can be useful to your issue, but i also said that this can be related to the settings in the EFI GOP driver itself, if so this is what needs to be edited with Intel BMP tool (Seach its guide on the forum), replace in the bios and flashed back.
Here a similiar user issue: [Help] Fujitsu Ivy Bridge IGP - No EDID when using UEFI Video ROM - BIOS/UEFI Modding / BIOS Modding Guides and Problems - Win-Raid Forum (level1techs.com)