https://bugs.freedesktop.org/show_bug.cgi?id=33957
--- Comment #6 from anjo.weichbrodt@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.