Bug#679127: it is nouveau, not x.org

[Douglas Mencken <dougmencken@gmail.com>]

As guys on #nouveau @ freenode suggested, I rebooted with
``nouveau.noaccel=1'' added to kernel arg list.

It works well after that, only it's not accelerated, glxinfo | grep -i
"renderer" shows "Software Rasterizer".

Thanks again for ignoring this bug. I'll bisect
git://anongit.freedesktop.org/nouveau/xf86-video-nouveau now.