Install gddccontrol by entering the following commands in the terminal:
sudo apt update sudo apt install gddccontrol
Description:
program to control monitor parameters (graphical interface)
DDCcontrol is a tool used to control monitor parameters, like brightness and contrast, without using the OSD (On Screen Display) and the buttons in front of the monitor. . This package provides a graphical user interface.
Homepage: https://github.com/ddccontrol/ddccontrol
Version: 0.4.3-2
Section: universe/utils