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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: Ancalimon on May 11, 2003, 05:50:59 PM
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As we all know AGA Amiga`s support lots of resolutions with different frequencies.
I`ve discovered something regarding screen refresh under CyberGraphx screens.
If you set your Cybergraphx screen's vertical frequency to 60hz. And also set your AGA output frequency to 60hz (NTSC) too, screen refresh under cybergraphx screen (only under the resolution in which you set the vertical freq to 60hz) becomes very smooth. Moving windows with mcps solid resfresh option looks very nice.
And most importantly your mouse pointer moves very smoothly. You don't see it flickering or jumping or any other. The scanline does not effect the refresh of the screen.
It's something about timing I think. your harware sends graphx data at the same time screen is refreshed once. And not a single frame is lost this way.
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Interesting.
I've never really noticed mouse flicker on my BVision, but as fot the other stuff, you got a point about MCP...
Pity I can't bear to look at a screen with < 75Hz refresh for any length of time (part of the reason for getting a gfx card).
If it is a timing thing, maybe setting your AGA to match your CGX refresh (where possible) would help. Maybe some software is getting the VBlank interrupt from the AGA side and ignoring the CGX side?
Hmm, let me see if I can find any 75Hz AGA modes...