Finally ordered my Indivision AGA 1200 MK.

[bbond007]

I think you're gonna be very dissapointed if you think it speeds things up.
The AGA1200 is a Scandoubler Flickerfixer. It doubles the horizontal frequency of 15 kHz screen modes, so that you can use a "modern" PC monitor (CRT, LCD or TFT). It doesn't work like an accelerator/turbocard.

Thats not entirely true....

You'll get substantial speed increase(over 100%) by switching from multisync mode to interlace in things like workbench and shapeshifter.  Interlace mode did not work well with my Dell 2320 monitor I was using.

Some people may be using monitors that only support the dblpal and dblntsc modes... those people will also get a speed increase...

you'll get resolutions such as 1280x720 and 1024x768.

We'll wait and see what other goodies are in the new firmware. grafitti, etc...

[bbond007]

I must admit, I haven't found that much speed increase between PAL interlace and multiscan productivity mode, for average workbench use.

Higher resolutions would be nice of course.

On my machine which is a 50mhz 060, I get 50% Quadra 950 speed in shapeshifter in multisync and 100% in 640x512 PAL interlace...

that is a huge difference in the playability of games.

[bbond007]

I have a Philips 107P VGA CRT monitor. HighGfx works fine and looks great for Workbench and OctaMED (gfx artifacts disappear after 5 minutes being powered on). I'm not a gamer so I couldn't give a monkeys about PAL being shifted to the right etc. I have noticed though that with SuperGfx OctaMEDs timing being related to vertical scan goes a bit out of tune. With HighGfx it is fine. I tried it with a Hanng 19" DVI and it worked but it looked too sharp and was unforgiving so I am happy with my CRT.

I know I fixed that artifacts issue on my current 1D4 and my previous one(also 1d4) MBs by bridging r127. Mine would do the same thing but return if a breeze went through the room...

[bbond007]

Ah, I don't use shapeshifter so I can't speak for that

try and run WB in 256 colors in both multisync and PAL interlaced...

[bbond007]

I'll check that tonight

I usually just run 32 colours in WB but if it's a huge difference, it might be worth the consideration once I have spare change.

its sad to say but AGA really only could perform on-par with 640x480@8bit SVGA or Mac video of that era if it ran in interlace mode...

[bbond007]

I really would like an Indivision AGA MkII, but if there's artifacts then that would definitely put me off buying one. Did the MkI have artifacts?

The banding on the VGA is caused by a difference in the pixel clock on the monitor vs the Indivision... it does not happen on all monitors or even all modes... the new firmware will fix that... Some people have reported that changing the pixel clock in their monitor setup reduced the effect... Did not seem to help on the monitor I have the banding issue on.

The artifacts are not caused by the Indivision. They are a bug in the hardware and if you have them, you'll get them in Multisync mode even without the Indivision. If anything, with the Indivision you can just run interlace mode if you don't feel like fixing the hardware. If you don't fix the motherboard, you'll also have the same artifacts in highgfx and the other new modes...

[bbond007]

Thanks for the info. My motherboard revisions are 1A and 1D3. Does that mean I won't get artifacts? Or are the artifacts a seperate issue to the timing fix issue?

Well, actually, there are two different artifacting issues. The one I'm taking about is due to the MB being sensitive to thermal changes. As far as I know, while this type is annoying, it does not actually lead to instability.

There is another blitter artifacting error that causes graphics corruption and instability. This is the timing fix you hear about that makes the 1200 more compatible with accelerator cards.

neither of these issues are caused by the Indivision but the indivision can make them more pronounced as you are simply pushing the chipset harder.

There is really no telling what fixes you'll need. Even the same MB revisions may need different fixes.

[bbond007]

I presume this will work nicely then!

http://www.ebay.com/itm/Samsung-SyncMaster-711T-17-Flat-Screen-LCD-Desktop-Computer-Monitor-Black-DVI-/221126775347?item=221126775347&ViewItem=&ssPageName=ADME:B:EOIBSA:US:3160&nma=true&si=bCZAUe0Mt32cy9k0yYWP20X7gCI%3D&orig_cvip=true&rt=nc&_trksid=p2047675.l2557

hopefully... it works with my samsung S27B750V in HDMI. samsung makes a lot of monitors though