The xf86-video-modesetting work covered a month ago over"TearFree" page flipping supporthas been merged to the X.Org Server for whenever the next release ends up happening. As previously covered, a developer finally stepped up to offer a "TearFree" xf86-video-modesetting option for that gen...
git checkout -b 0.5.0 xf86-video-modesetting-0.5.0 # use git tag to find out ./autogen --prefix=/usr make sudo make install