When using digital CIMs, you set the target's video resolution to match your monitor's native display resolution. The native display resolution is set when configuring ports for digital CIMs (see Configure the CIM Target Settings).
Following is a complete list of KX III supported video resolutions when accessing a target from the remote console.
For 1920x1200@60Hz, you must use a digital CIM and set the CIM’s preferred resolution to 1920x1200@60Hz.