First try to boot to prompt.
At grub menu, press 'e’
Arrow down to linux line
Arrow right past ‘quiet’ and 'splash’
Backspace to remove ‘quiet’ and ‘splash’ taking care not to remove 'rw’
Add ‘3’ (without apostrophes meaning just 3)
Press F10 or ‘ctl’ + ‘x’ to boot
login with password to prompt.
If this boots to prompt, most likely a graphic card, and fix your graphic drivers at prompt.
Easier, safer at prompt than from chroot (and chroot from Elementary won’t do anyway, has to be chroot from a manjaro OS).