As suggested I tried with the opion UseFBDev = "false" or "true" on Edgy, with both UseFBDev value it failed.
dmesg [ 937.371124] [drm] Initialized radeon 1.25.0 20060524 on minor 0 [ 938.546246] agpgart: Putting AGP V2 device at 0000:00:0b.0 into 4x mode [ 938.546258] agpgart: Putting AGP V2 device at 0000:00:10.0 into 4x mode [ 938.557888] [drm:radeon_cp_init] *ERROR* radeon_cp_init called without lock held [ 938.558186] [drm:drm_unlock] *ERROR* Process 5604 using kernel context 0 Kernel 2.6.17-10-powerpc #2 Fri Oct 13 16:37:41 UTC 2006 ppc GNU/Linux -- [Radeon 9200] [Mac Mini (powerpc)] drm fails to initialize the radeon module, consequently direct rendering is disabled. https://launchpad.net/bugs/47762 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs