Set screen resolution from grub in Linux

We know that in Linux VGA Properties are handled by xorg.

But if we need to control the VGA resolution before the control goes over to xorg
it can be easily done from the Grub

There are different Grub VGA Modes that can be enabled from the kernel boot up line in Grub

This property can be set with vga=xxx where xxx is the value that denotes different colour depth and screen resolution.

This property is used by editing the kernel boot-up line in Grub
Edit the kernel boot up line when grub screen arrives at the startup

and at the end of the kernel boot up line just add vga=xxx. different values that can replace xxx for different purposes are listed below.

Colour depth	640x480	800x600	1024x768	1280x1024	1400x1050	1600x1200
8 (256)	769	771	773	775
15 (32K)	784	787	790	793
16 (65K)	785	788	791	794	834	884
24 (16M)	786	789	792	795