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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: LuisTHE on October 16, 2005, 06:54:02 PM
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I have a question regarding CGXMode on BVision,when defining a new screenmode what is the difference between Negative and Positive polarity?
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@LuisTHE:
For the positive/negative, do a search on google for monitor timings.
Otherwise regarding the issue of defining screenmodes - just choose a vesa screenmode from the predefined list of screenmodes. For normal screenmodes they will in most cases provide optimal performance and proper timings. If you need to create a custom screenmode, start with the closest vesa screenmode and modify it.
/Patrik
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That doesn´t answer my main question,what is the difference between negative and positive polarity.
But thanks anyway.
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LuisTHE:
The positive/negative setting most likely sets wether the sync goes from 0 to 1 or 1 to 0 when going from normal (drawing pixels) to the sync interval.
You should not have to fiddle with stuff like that normally though and that was the reason for my first answer.
/Patrik
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LuisTHE
if you don't know whats a thing is, it means that you don't need it :-)
Try to change from positive and negative when you are in Test mode screen and you'll get the answer.
No harm at all, for your monitor. Some monitors, reacts better (faster) with POS/NEG sincs signals, when you switch through different screens.