Select "Show all devices" and choose the monitor that corresponds to the one you connected to your computer and click "OK".
Continue choosing "Close" button and "OK" button until you close the Display Properties dialogue box.
Microsoft® Windows® NT Operating System 
Click "Start," "Settings," "Control Panel," and then
In the Display Registration Information window, click the Settings tab and then click "All Display Modes".
Select a mode that you wish to use (Resolution, Number of colors and Vertical frequency) and then click "OK".
Click the "Apply" button if you see the screen working normally after clicking "Test". If the screen is not normal, change to a different mode (lower mode of resolution, colors, or frequency).
If there is no Mode at All Display Modes, select the level of resolution and vertical frequency by referring to the Preset Timing Modes in the user guide.
Linux Operating System 
To execute
Press "Enter" at the first and the second screen after executing the X86Config file.
The third screen is for setting your mouse.
Set a mouse for your computer.
The next screen is for selecting a keyboard.
Set a Keyboard for your computer.
The next screen is for setting your monitor.
First of all, set a horizontal frequency for your monitor. (You can enter the frequency directly.)
Set a vertical frequency for your monitor. (You can enter the frequency directly.)
"Enter" the model name of your monitor. This information will not affect the actual execution of X- Window.
You have finished setting up your monitor.
Execute