As far as I know, the sync signal it's used when the video frames are not decoded at the required speed, so you can have a random image on the screen (like when waching in theater an old movie and the image goes up and down). This is what the signal it's used. But I never had any issues with that and I think this option can interfer with "try not to drop frames" option. My advice: if you have at least 1 GHz CPU, disable this option.
|