OctaMED screen "jumpy" with RTG. This cant be right??

[Tension]

Hi again,

I recently installed a Picasso II in my A4000 and it seems to be working fine with an old CRT monitor.

However, in OctaMED Soundstudio, the tracker window moves along very jerky when playing MOD files.

Before I installed the Picasso, the screen scrolled very smoothly on my old 1084s.

Initially, I thought i had selected too high a resolution for the Picasso, but even after reducing the resolution to 800x600 and 8 colours, the problem is still exactly the same.

Hopefully someone can help me out as I don't see how it is possible for AGA to scroll smoother than a Picasso II.

Thanks folks!!

[ChaosLord]

Hi again,

I recently installed a Picasso II in my A4000 and it seems to be working fine with an old CRT monitor.

However, in OctaMED Soundstudio, the tracker window moves along very jerky when playing MOD files.

Before I installed the Picasso, the screen scrolled very smoothly on my old 1084s.

Initially, I thought i had selected too high a resolution for the Picasso, but even after reducing the resolution to 800x600 and 8 colours, the problem is still exactly the same.

Hopefully someone can help me out as I don't see how it is possible for AGA to scroll smoother than a Picasso II.

Thanks folks!!

AGA = Amiga
Picasso2 = PC gfx card

[Tension]

AGA = Amiga
Picasso2 = PC gfx card

And?

[ChaosLord]

Lots of stuff that works correctly on Amiga Real Machines does not work correctly (or at all) on pc gfx card machines.

[magnetic]

Tension

I'll tell ya again man Octamed is meant to play ON PAULA on a REAL AMIGA. its programmed that way. There is so much sync and timing involved with this application.  Thats why octamed sux in emu.

[Tension]

Tension

I'll tell ya again man Octamed is meant to play ON PAULA on a REAL AMIGA. its programmed that way. There is so much sync and timing involved with this application.  Thats why octamed sux in emu.

But I am using a real Amiga and a real Amiga GFX card.

I thought GFX cards were meant to speed things up / make things better generally.

If this doesn't work I'm truly gutted as the only thing I use the Amiga for is OctaMED, and the only reason I got the GFX card was for OctaMED.

It's not looking good  

[ChaosLord]

Well since you ONLY use your Amiga for Octamed Sound Studio and since I love SoundStudio I will tell you a secret but very EVIL hack.  You can disable the gfx card compatibility with AmigaOS (make it more incompatible than it already is).

This hack will break tons of software.  You have been warned.

Set this environment variable this way and see if it helps your problem.

Code: [Select]

ENV:Picasso96/DirectColorMask: No
Its very OS hostile to activate that.... but it can speed blitting up a huge amount when it no longer has to be compatible to the Amiga.

[ChaosLord]

But I am using a real Amiga and a real Amiga GFX card.

You are not using a "real Amiga GFX card".  You are using a PC gfx card chip bolted onto your Amiga in a highly incompatible manner.

It can't directly do masked blits so it must emulate them.  (that hack I gave u turns off the emulation).

It might also have broken vertical blank interrupts.  

And of course it is missing 7 of the sprites.

And it has no copper and there is no way to track the raster beam.  So it is completely alien and not Amigalike at all.

I thought GFX cards were meant to speed things up / make things better generally.

I thought they were to cause endless problems and make ppl get mad and hate the Amiga.

If you really ONLY use your Amiga for Octamed Sound Studio then you would have been much better off buying a hardware flickerfixer so you could run OMSS in 640x400 or 640x512 without flicker (that is how I do it)

I have a gfx card in my Amiga but I keep it disabled 99% of the time.

[Tension]

I got it working by messing about with p96 and PVS using trial and error.

What an unintuitive system that is, but at least I have a OctaMED screen in slightly higher resolution than normal with no flicker.  Just hope i dont damage my monitor with the bizarre settings im using.

I know nothing.

[spihunter]

Hi again,

I recently installed a Picasso II in my A4000 and it seems to be working fine with an old CRT monitor.

However, in OctaMED Soundstudio, the tracker window moves along very jerky when playing MOD files.

Before I installed the Picasso, the screen scrolled very smoothly on my old 1084s.

Initially, I thought i had selected too high a resolution for the Picasso, but even after reducing the resolution to 800x600 and 8 colours, the problem is still exactly the same.

Hopefully someone can help me out as I don't see how it is possible for AGA to scroll smoother than a Picasso II.

Thanks folks!!

Wish I could be more help here but I haven't had an Amiga with a graphics card since 1998. I do remember that back on my old A4000 with a Piccaso 4 that I didn't need any funky screen modes to get Octamed to work. It worked fine. Maybe your having something going on elsewhere with the video card conflicting with something else?.

[TheGoose]

I got it working by messing about with p96 and PVS using trial and error.

What an unintuitive system that is, but at least I have a OctaMED screen in slightly higher resolution than normal with no flicker.  Just hope i dont damage my monitor with the bizarre settings im using.

I know nothing.

I have been down this road with the exact same equipment and OSS. To get OSS to work smoothly and not to use the planar switch, I found that I would not use P96 or CybercrapX. I just use the driver VillageTronic provided.

Then I could get it to work great. I'll try to add more later...