Are you sure you are using direct rendering? Execute in a terminal: glxinfo | grep "direct rendering"
Not using direct rendering means that everything is done at the software level - your graphics card isn't doing any of the 3D processing. -- X takes ~70% of CPU when Compiz is activated https://bugs.launchpad.net/bugs/545015 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
