Can i remove GPU, displayport and screen "smart" features?

[Someone]

I have an Nividia 1070 that is connected via displayport to a dell screen. Manytimes while i am booting FreeBSD (and other operating systems, its dual boot with windows 10, even when booting with a linux distro live usb) the screen is not showing hardware checks, BIOS etc. I get the message "no DP signal in your device, entering power saving mode".
I have an Asus ROG BIOS by the way, if it helps. Rebooting after powercycling didnt resolve the issue. The disk is heard spinning, so its probably just a gpu/screen signal issue.

In the days of old, computers just sent to the screen their signal without "smart" stuff intervening, the good old VGA, PS/2 keyboard and mouse days.

From dmesg (after a few unsuccesful boot tries and evea a failed powercycle try) :

Root mount waiting for: usbus0

.....Razer peripherals.....

usbus0: waiting for BIOS to give up control

Is it safe to flash the BIOS with something like coreboot or similar? (Intel i9 9900 8 cores 16 hardware threads, ROG stix motheboard).

Thanks for any info about this issue.

 

[T-Aoki]

Doesn't your BIOS / UEFI firmware has something like "Boot Time Extention" or something alike (the name would be different by manufacturer, possibly depending on the model / series, too)?

Does something happen if you press "Enter to BIOS (UEFI) menu" hotkey (your motherboard user's manual may have the description) multiple times on boot, still on black screen? Does BIOS / UEFI menu appears?

For example, on ThinkPads I've ever used before, it was F1 key (usual Phoenix BIOS'es would, too).
On Minisforum MS-01, it's Delete key (most AMI BIOS'es would, too).
Others? Sorry, don't know.