Comment 39 for bug 568988

#38 Please read the description in top and you'll find the answer to your questions about k0ekk0ek and info-g-com. (about no backfill read in 351186)

.. definitely broke..

"It Ain't Necessarily So" (George Gershwin).

Nobody forced you to update the xorg-xserver. If you wish to be unaffected of such updates, make the ppa sticky. If you would get back the fix you should use synaptics and select version. If you couldn't wait 'til i update the ppa, then you can decide to build your own patch. The steps are listed above and work. I'll build a new source later today or tomorrow.