No HDMI anymore after GRUB menu

Which Khadas SBC do you use?

Vim 3 Pro

Which system do you use? Android, Ubuntu, OOWOW or others?

openSUSE Tumbleweed

Which version of system do you use? Khadas official images, self built images, or others?

official image:

Please describe your issue below:

Grub menu is visible on Monitor but after Grub menu no output through HDMI anymore

Post a console log of your issue below:

Suspect you will need the device tree and some other stuff.