I just spent the past two days Googling this and trying to find an answer before I posted.
Here's the problem: I installed 13.10 64-bit fresh from a DVD and the various desktop animations in unity are slow and choppy. This includes the dashboard, the launcher tooltips, switching workspaces, switching apps etc.
The whole desktop interface appears to be slow. Graphical performance within apps is totally fine.
Here's the results of my unity support test:
$ /usr/lib/nux/unity_support_test -p OpenGL vendor string: Intel Open Source Technology Center OpenGL renderer string: Mesa DRI Intel(R) Q35 OpenGL version string: 1.4 Mesa 9.2.1 Not software rendered: yes Not blacklisted: yes GLX fbconfig: yes GLX texture from pixmap: yes GL npot or rect textures: yes GL vertex program: yes GL fragment program: yes GL vertex buffer object: yes GL framebuffer object: yes GL version is 1.4+: yes Unity 3D supported: yes
Is there any more information I should check that might help me find a solution?