By setting my DefaultDepth to 16 on my xorg.conf file I was able to get 3D working. However I believe this is a work around.
rican-linux@ibookG4-UbuntuMATE:~$ LIBGL_DEBUG=verbose glxinfo |grep render libGL: screen 0 does not appear to be DRI3 capable libGL: pci id for fd 4: 1002:4e56, driver r300 libGL: OpenDriver: trying /usr/lib/powerpc-linux-gnu/dri/tls/r300_dri.so libGL: OpenDriver: trying /usr/lib/powerpc-linux-gnu/dri/r300_dri.so direct rendering: Yes GLX_MESA_multithread_makecurrent, GLX_MESA_query_renderer, GLX_MESA_multithread_makecurrent, GLX_MESA_query_renderer, OpenGL renderer string: Gallium 0.4 on ATI RV350 GL_MESA_ycbcr_texture, GL_NV_blend_square, GL_NV_conditional_render, GL_OES_fbo_render_mipmap, GL_OES_get_program_binary, GL_OES_mapbuffer, rican-linux@ibookG4-UbuntuMATE:~$ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1432949 Title: r300 Mesa driver not loading with KMS enabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1432949/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs