Set the video settings for kernel boot options via grub:

sudo nano /etc/default/grub

Add this line, or change it to this, or add this to the current line (if you know what you’re doing). You can adjust the mode_options, the most import magic is nomodeset and noedid, minimally you can try just adding the noedid:

GRUB_CMDLINE_LINUX_DEFAULT="nomodeset video=uvesafb:mode_options=1024x768-16@60,mtrr=0,scroll=ywrap,noedid"

This turns off KMS mode switching in the kernel; Use the uvesafb frame buffer; Set it to a resolution of 1024×768, with a depth of 16 at 60 Hz sync rate (other options can be 1920x1080-16, or 1600x1200-32@50, depends on your hardware) ; disable the memory type range registers (mtrr) for the framebuffer; enable display panning in a wrap-around mode, using VESA protected mode; do not probe the display to check for edid data. When you switch over to it or connect it to a monitor, then it should be set to that mode (already).

sudo update-grub

To make the grub settings get written to your /boot. Reboot and check it’s working, with noedid you won’t necessarily get a working display if you plug a different monitor in, possibly it could break (eg if the frequency is set higher than the display can handle; though I think modern displays avoid this).

Source: 16.04 – How to eliminate EDID checksum errors? – Ask Ubuntu