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Documentation about the Vampire hardware

V4 SA Screenmodes?

Carlos Roldan

Posts 46
06 Aug 2020 22:44


How do I adjust screenmodes on V4 SA for games (AGA, ECS, ect...)  RTG uses whole screen just fine, but when I try the games they are mostly to the right side of monitor.  Thanks.


Roy Gillotti

Posts 517
07 Aug 2020 01:57


This happens on my stock Amiga as well with the actual RTG out. I think it's working as expected, just in the days of CRTs you could do horizontal and vertical adjustments to counter it.


Eric Gus

Posts 477
08 Aug 2020 06:41


Check if your monitor has options for centering / adjusting the display .. some have a "wide/aspect" type option you might find something there that helps .. as each monitor is different it could be under any menu option name..


Gunnar von Boehn
(Apollo Team Member)
Posts 6207
08 Aug 2020 08:46


A special feature of the AMIGA graphics was that it did not had a fixed display like PC but that you could define when to start and stop the display.

This means a game was not limited to 320x240 pixel but games could show more pixel. E.g. 336 wide or 352 wide.
The Amiga term for this was "overscan".
The normal Amiga screen is placed by default a bit more to the right , and the left space is used when activating overscan.


posts 4