[Bug 33957] G4 Mac mini Radeon 9200: Broken 3d-Acceleration

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Wed Feb 9 10:06:04 PST 2011


https://bugs.freedesktop.org/show_bug.cgi?id=33957

--- Comment #6 from anjo.weichbrodt at gmail.com 2011-02-09 10:06:03 PST ---
(In reply to comment #5)
> (In reply to comment #5)
> > Disabling the kms (radeon.modeset=0) with the forums help, it was possible to
> > fix a compatibility problem between radeonfb and the kms drm.
> 
> If you enable KMS but disable radeonfb instead, does that work any better?

I enabled KMS and disabled radeonfb. In KMS's default modeset, the system
crashes during the boot process.

With radeon.agpmode=4 the system boots fine. 3d acceleration is enabled but
works only with some application and is really slow. -> regular system crashes

Forcing the PCI mode with radeon.modeset=-1 the system boots fine.
3d acceleration is enabled and works (no blue tins or flickering), but is
really slow: When Visual effects for gnome session are enabled, glxgears gives
20 fps, without visual effects: 400 fps.
Tuxkart or Flightgear are not usable.

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