Nvidia 8400GS manual

4. In the following window you can select between the same content on both displays (Clone) -> 1 or independent content to two displays (Dualview) -> 2 by using the extended desktop:

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5.Select the second monitor / TV:

6. Did you decide for independent content on two displays (Dualview) -> 2 (see above) you need to decide in the following dialogue box which monitor/TV will be the primary display.

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