Well, I just wanted this yes/no simple question to Dell e-mail support. Their web site required service code just to send an e-mail. Then I tried their "technical" chat support. Some Indian person responded weirdly and finally answered that he/she did not have technical knowledge and just gave me the link to the e-mail support (which I tried already).
I have a Dell U2412M monitor which has a DisplayPort and an up-link USB port. I have enabled DDC/CI in the OSD. I am using Windows 8, and the brightness control on the Charm Bar is disabled.
Is it possible to enable it? Because I heard that DDC/CI lets your computer control your display.
DDC/CI (Command Interface) standard was introduced in August 1998. It specifies a means for a computer to send commands to the monitor, as well as receive sensor data from the monitor, over a bidirectional link. Specific commands to control monitors are defined in a separate Monitor Control Command Set (MCCS) standard version 1.0, released in September 1998.
DDC/CI monitors are sometimes supplied with an external color sensor to allow automatic calibration of the monitor's color balance. Some tilting DDC/CI monitors support an auto-pivot function, where a rotation sensor in the monitor enables the operating system to keep the display upright as the monitor is moved between its portrait and landscape positions.
Most DDC/CI monitors support only a small subset of MCCS commands and some have undocumented commands. Many manufacturers did not pay attention to DDC/CI in the past, but now almost all monitors support such general MCCS commands as brightness and contrast management.
Best Answer
See the DDC page on Wikipedia :
It links to software that provide GUI and command line control of most modern displays.