Video timing Video timing details revealed Video timing picture Green dots are the visual side of sceen. Black dots are the black border or the screen and the pixels where the cathode ray is outside the picture.
White dots are the sync pulses.
The beginning of thse pulses position the picture on the screen. A is the amount of dots. Used to use 1048x832 pixels in my monitor before i found that i can get that work with windows too. B is the startplace of horisontal sync-pulse. If will remain in constant plase, so if you increase it the picture will move to left and if you decrease it the picture will mode to right.