The instructions here are only taking the example from ATI Radium (RADEON) series of 9550 computer video adapter. So you have use other kinds of video adapters, please debug them with reference to this. Caution: There are three setup items for video adapter setup section that shall be met. :2,3 options are the conditions for the driver software of video adapter, so you must install the driver software of video adapter applicable for the model of video adapter.
1 The refresh rate of screen must be 60HZ, otherwise, there will no be images displayed.
2 Options of displays shall be presented in “Copy” mode (please notice that different video adapters carry the different meaning).
3 There shall be one option of “All Same” in the display options of video adapter (ATI 9550 is among “Video- Theater Moe- All Same” pull-down menu of the software with video adapter conditions”
For any questions, please consult the computer supplier to solve your problems swiftly.