DDC/CI control database
Project ddccontrol-db
contains database of monitor descriptors, which are used by ddccontrol
and gddccontrol
utilities to control monitor parameters using DDC/CI protocol.
Installation
The most convenient way to install ddccontrol-db
is to use packages from official distribution repositories.
Manual installation is more complicated, but contains latest monitor profiles.
Installation from official packages
On Ubuntu based distrubtions ddccontrol-db
, along with utilities, can be installed using apt
:
sudo apt install ddccontrol ddccontrol-db gddccontrol
Instructions for other distributions will be prepared later.
Installation from sources
Install build depedencies (on Ubuntu):
sudo apt install intltool
Instructions for dependecies installation will be prepared later.
Latest repository can be cloned and built by:
git clone https://github.com/ddccontrol/ddccontrol-db.git
cd ddccontrol-db
./autogen.sh
./configure --prefix=/usr/
make
Finally, the build can be installed using:
sudo make install
Usage
Monitor database is used indirectly with ddccontrol
and gddccontrol
utilities.
From GUI using gddccontrol
gddccontrol
is a graphical utility for monitor configuration. It is called Monitor Settings in list of applications.
Currently, root privileges are required to control monitor parameters, therefore the launcher automatically asks for a password.
Utility can launched directly from commandline:
sudo gddccontrol
From command line using ddccontrol
ddccontrol
allows monitor configuration directly from commandline. To probe I2C devices to find monitor buses use:
sudo ddccontrol -p
To read value of control 0x10
(brightness on VESA compliant monitors) for device dev:/dev/i2c-4
:
sudo ddccontrol -r 0x10 dev:/dev/i2c-4
To set value of control 0x10
(brightness on VESA compliant monitors) to 75
for device dev:/dev/i2c-4
:
sudo ddccontrol -r 0x10 -w 75 dev:/dev/i2c-4
See ddccontrol -h
for more information.
License
The project is licensed under GNU General Public License v2.0
license. See COPYING for details.