Install vbetool by entering the following commands in the terminal:
sudo apt update sudo apt install vbetool
Description:
run real-mode video BIOS code to alter hardware state
vbetool uses lrmi in order to run code from the video BIOS. Currently, it is able to alter DPMS states, save/restore video card state and attempt to initialize the video card from scratch.
Homepage: http://www.codon.org.uk/~mjg59/vbetool/
Version: 1.1-4
Section: universe/utils