Comment 190 for bug 1220426

If the instructions are too difficult for you, you really should ask yourself whether you want take the (quite substantial) risk of modifying core packages of your installation. If you make an error, you risk making your installation unusable.

Also, setting up a PPA isn't really worth the effort: a fix has been found now, which means that it shouldn't take that long until a fixed Xorg package finds its way trough the regular updates.