Hi, I am a mostly happy owner of (among others) a last model of the Mac Mini - PowerPC edition. These beasts came with a G4 MPC 7447a at 1.5GHz and a AGP Radeon 7250 (R280). I experienced the bug about the same time as Jean-Luc, it got better a little while, but really soon it was deadly again : no more accelerated OpenGL possible.
With the last update, things got slightly better: at least the glxgear test doesn't kill the system anymore. That's not to say that it works either: the gears became a bunch of tiny triangles appearing randomly in the window. But it may be only a endianess issue. I am not sure. Of course any real OpenGL application will continue to succeed in freezing the system hard (e.g. any 3D game like NexUIz). I am also clueless about the source of the bug. I tend to remember like Jean-Luc that it was an X/mesa update that triggered the bug. No certainty nonetheless. Also as I read the thread it seems to be a bit tricky between the interaction of the firmware loader, the DRM layer of the kernel, DRI and maybe mesa and X. AFAIK, composing doesn't work either, and I heard some people experiencing some hard freeze also with radeon based mac with Debian testing. Let me know if I can help. Thanks for your attention and for your work. Stéphane
