Comment 45 for bug 307306

Xorg on my also used 100% of one of cores. But I was not able to solve this without recompiling packages.
 * Nothing changed if I killed gnome-power-manager or gnome-settings-daemon.
 * I downgraded libxrandr to intrepid version, and the related packages - no change.
 * Removed libgnome-desktop-11 in favor of libgnome-desktop-7 and downgraded many gnome packages to intrepid version, although they were working mostly fine for a couple of weeks.

Strangely enough, only after I downgraded gnome-session, the high cpu use by xorg has stopped.

Dell XPS 1330 using nvidia x drivers so intrepid xorg, other than that mostly jaunty packages.