Comment 3 for bug 68607

My concern is not so much about the compositing window managers as it is for the 3D screensavers that Ubuntu ships by default. Some of these tend to lock up a system when being rendered in software. There are also several 3D games in the repositories that run much better with DRI enabled.

The i810 and i815 are a couple of those rare chipsets for which there is a free (libre) driver that supports hardware-accelerated 3D. Ubuntu should take full advantage of that so that when i810 and i815 users install Ubuntu, they do not need to tweak Xorg.conf in order to take full advantage of their hardware.