How to solve GRUB bootloader OS startup issue?

Question

linux

Put Linux Debian on the desktop as the second operating system, in addition to Windows 10 on the HDD. When turned on, the GRUB bootloader starts, when I select Linux, a standard line with numbers is displayed, after which some red element is shown in the same line for a split second and the monitor goes to "No signal" and then nothing happens. In nomodeset mode, Linux starts without problems in terminal mode, in which nothing can be done, since elementary sudo is missing and Wi-Fi adapter and 3G modem devices are not detected. Windows 10 starts up fine.
Linux was installed using a Ventoy multiboot flash drive with a GRUB interface. What is more strange is that it starts the installation of someLinux distributions, and the installation of some Windows from it does not start. At the same time, absolutely all the manipulations described above pass without any problems on 3 laptops with video cards from Nvidia and AMD, therefore, possible problems with a flash drive, drivers and distributions disappear, most likely, the matter is in the computer.

Data:
Linux version - Debian 10.10.0 netinst, no updates from internet.
Video card - NVidia 9600GT.
Monitor connection - VGA cable.

I've been poking around with the problem for a week, I haven't found any solutions even in the BIOS, and I don't have any guesses what the problem might be. But, from the observations described, I suspect that the problem may be in some relationship between GRUB and VGA, but this is not certain.

Answer 1

Linux version - Debian 10.10.0 netinst, no updates from internet.

What does "no updates from the internet" mean if netinst is an installation from a repository over the internet?

Answer 2

since elementary sudo is missing

Far from every distribution, sudo is generally supplied, and even more so, no one will magically register the user in the group that is registered in /etc/sudoers to run commands.