Using default settings, I already ran three games that seem to work except for colour scheme. It looks like 8-bit, at most.

I tried to change SDL prefs to use Ambient or Public screen, and switched off SDL screen promotion. It didn't help at all. What am I supposed to do now?

[ Edited by DiskDoctor on 2009/12/31 16:27 ]

Radeons can do heavy dithering in 16 bit, when using 3D. So if you tried 3D SDL apps on a 16 bit Ambient screen, it's somewhat "normal".

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So what am I exactly to do to fix it?

Run your SDL apps, especially SDLGL (3D) ones, on a separate, 32 bit screen? That's roughly everything, you could do in this manner.

I already ran three games that seem to work except for colour scheme. It looks like 8-bit, at most.

Which games are these?

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Battle fo Wesnoth for example, Aleph One also, one more not sure now.

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That's still not an adequate answer I was asking for.

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OK since I cannot run any further depth than 24-bit, I'm lost with those games, aren't I? I suppose it concerns all Mini users... No good...

Any SDL update that might help? I suppose I'm having the version shipped with the system.

PowerSDL isn't shipped with MorphOS 2.4. Are you sure that you have the latest powersdl?
powersdl.library 14.0 (2009-02-26)
by Ilkka Lehtoranta [based on SDL 1.2.11 S 1997-2009 Sam Lantinga, original MorphOS port by Gabriele Greco]
powersdl_gfx.library 11.0 (2009-02-21)
by Matthieu Leroyer [based on SDL_gfx 2.0.18 S Andreas Schiffler] (Mar 16 2009)
powersdl_image.library 9.5 (2009-02-23)
by Nicolas Sallin [based on SDL_image 1.2.7 S 1999-2009 Sam Lantinga and Mattias Engdeglrd] (Mar 16 2009)
powersdl_mixer.library 8.7 (2009-02-06)
by Nicolas Sallin [based on SDL_mixer 1.2.7 S 1999-2009 Sam Lantinga, Stephane Peter and Ryan Gordon] (Feb 20 2009)
powersdl_net.library 8.0 (2006-05-20)
by Matthieu Leroyer [based on SDL_net 1.2.6 S Sam Lantinga, Roy Wood and Masahiro Minami] (Feb 8 2009)
powersdl_sound.library 1.2 (2009-02-07)
by Ilkka Lehtoranta [worked from sdl_sound]
powersdl_ttf.library 7.6 (2006-11-05)
by Nicolas Sallin [based on SDL_ttf 2.0.8 S 1999-2004 Sam Lantinga] (Feb 8 2009)

[ Edited by Korni on 2009/12/29 14:41 ]

@Korni

All there. Just reinstalled SDL from dowloads here to make sure. Same result. I run Wesnoth, all I get is several colours maybe.

But wait!! I switched from 16bit to 24 bit and... it worked

That's strange - default MorphOS installer sets up the lower depth on the mini, which in turn prevents many SDL games from functioning. That's worth the notion. Thanks guys!

Some SDL games just clone your Ambient screen so if you are running Ambient on 16bit depth then those games are also using 16bit depth.

The latest powersdl.library should have an option in SDL Prefs to change this behaviour. At the moment I am not sure if I released this version already... should check....