Indivision AGA Flicker Fixer/Scandoubler

[Jiffy]

After several hours of struggling, I am still not able to get anything remotely decent on my CRT... :-(

The image is heavily distorted, severely flashing and flickering and it turns black every few seconds. I also noticed extreme ghosting of the icons, although this can also be caused by the other graphical problems I have. The current image is unfortunately completely unusable...

I expect the connection to Lisa is the cause of trouble, as I find my Indivision much to easy to remove once fitted: both my Idefix Express and my old DCE Scanmagic have a much better connection to their respective chips on the motherboard of my A1200.

Anyone else suffering the same problems? How well should the Indivision hold on to Lisa? I expected it would hold on tightly, but this is definitely not so.

[Jiffy]

tribz wrote:
Seems to depend on the board. I have two 1200 boards, one with a CBM Lisa and one with a HP. The HP one fits terribly. In fact it no longer stays on and I now have boot problems with it (blue screen) even when its not fitted.

Ah. I also have the HP one... :-(
The Scanmagic fits perfectly, the Indivision does not.

Upon further inspection: everytime I push it on Lisa (the Indivision board, that is), after releasing it, I can hear it 'creap' up a little which imo is not really a sign of a good connection.

So it seems I now have a shiny, brandnew, EUR 138,38 costing (excluding shipment), highly anticipated and highly sought after piece of kit for my A1200 which apparently doesn't fit that same A1200 because it appears to have an HP-Lisa instead of a CBM one (my A1200 is from Commodore, not AT). I am slightly annoyed. Please give me a moment while I am repeatedly banging my head to the nearest wall.

Anyone with a solution?

The story continues: it now refuses to stay on at all. If I so much as breath on it, it falls of. This is definitely not funny.

I have now removed the Indivision and put the Scanmagic back. My A1200 is now at least working ok again. The Indivision is definitely not going back in this computer again...

[Jiffy]

It's a flickerfixer for all AGA-screen modes. Nothing more, nothing less. Every AGA-graphics mode remains exactly as fast as it was as it is still exacty the same screen mode. It doesn't add any extra modes.

[Jiffy]

Khephren wrote:
Then I'm a bit confused, as it says '24bit colour resolution in all screenmodes'.

Why? It can indeed display all colours the A1200 can reproduce. The A1200 has a 24 bit palette, but not all of them can be displayed at the same time. For example, you can have a 640x512 workbench with a maximum of 256 colours. Those colours are selected from a 24-bit palette. With older flickerfixers for the Amiga (1200), not all colours could be correctly reproduced on screen, as they had a maximum colour resolution of 12 or 16 bits (depending on model).

When using one of those older 16 bits flickerfixers, you could only display 65,536 different colours, even though the A1200 can display 16,777,216 different ones. The Indivision 1200 is able to correctly display all colours the A1200 has to offer, although (depending on the used screenmode) not all of them will be displayed simultaneously.

All in all, the Indivision 1200 is a 24 bit flickerfixer as it can display every single colour from the 24 bits AGA-palette.