What is the state of the radeon driver on ppc machines? I tested Ubuntu 9.04 on a PowerBook G4 with a Mobility 9600 and it didn't seem to have 3D acceleration with the default driver. Have not yet tested the latest from git yet.
You could try
But not both the same time, remove is like this
dpkg --purge drm-r6xx-r7xx-support-dkms
dpkg --purge drm-r6xx-r7xx-3d-dkms
That only updates the drm modules, kernel version does not matter. If ppc does not compile all modules just change it a little bit. I compile all because i want to be able to switch to other cards too.
Well, he has got a Radeon 9600 so he does not need r6xx/r7xx stuff.
Well it would not hurt.
I'll just compile a 2.6.30 kernel when I have the time and try the 3d acceleration. Thanks for the answers, I'll inform you if the newer kernel solves the problem.