Comment 3 for bug 988343

Sorry for the delay.

To recreate this bug, first boot into an environment where LLVMpipe software 3D rendering is being used instead of hardware accelerated rendering (eg. in Virtualbox or by blacklisting your video driver, or using a Radeon HD4770 without the fix from the upstream 3.2.20 kernel). Then use Firefox to load the web page in the attachment. Adding the patch almost doubles the frame-rate.

Although if you bring mesa 8.0.3 to Precise as you are considering doing, that will take care of this.