Setup guide

Is:Where:

The refresh rate of the corresponding resolution.<refresh>

The reference sync. Set to 601sync when you are using NTSC or PAL timing

and you are connected to an external sync generator. Set to DTVsync when

you are using HD timing and you are connected to an external sync gener-

ator. Set to freesync when you are not connected to a sync generator.

The horizontal and vertical offset of the video sent to the broadcast monitor

relative to the graphics display. These parameters are required for some

resolutions to display accurate field dominance during playback. Use these

optional parameters with NTSC.

Examples of use

VideoPreviewDevice ntsc, dviramp, 1, 720, 486, 30, 601sync,

0, 1

VideoPreviewDevice pal, nvidia, 1, 720, 576, 25, 601sync

VideoPreviewDevice 1920x1080@50i, nvidia, 1, 1920, 1080, 50i,

DTVsync

When working with variable framerate material, enable the video preview

device token corresponding to the 720p timings, for example:

VideoPreviewDevice 1280x720@5994p, nvidia, 1, 1280, 720,

5994p, 601sync

Configuring Readback Mode

On systems without a DVIramp or a NVIDIA SDI card, you must enable the

following lines to ensure video preview using the readback mode:

VideoPreviewDevice pal, readback, 2, 720, 576, 25, 601sync

VideoPreviewDevice ntsc, readback, 2, 720, 486, 30, 601sync

132 | Chapter 6 Advanced Configuration and Troubleshooting