Comment 3 for bug 605249

in 10.04 purged all these packs

xserver-xorg xserver-xorg-core xserver-xorg-input-evdev
  xserver-xorg-input-mouse xserver-xorg-input-synaptics
  xserver-xorg-input-vmmouse xserver-xorg-input-wacom xserver-xorg-video-apm
  xserver-xorg-video-ark xserver-xorg-video-ati xserver-xorg-video-chips
  xserver-xorg-video-cirrus xserver-xorg-video-fbdev xserver-xorg-video-geode
  xserver-xorg-video-i128 xserver-xorg-video-i740 xserver-xorg-video-intel
  xserver-xorg-video-mach64 xserver-xorg-video-mga xserver-xorg-video-neomagic
  xserver-xorg-video-nouveau xserver-xorg-video-nv
  xserver-xorg-video-openchrome xserver-xorg-video-r128
  xserver-xorg-video-radeon xserver-xorg-video-rendition xserver-xorg-video-s3
  xserver-xorg-video-s3virge xserver-xorg-video-savage xserver-xorg-video-sis
  xserver-xorg-video-sisusb xserver-xorg-video-tdfx xserver-xorg-video-trident
  xserver-xorg-video-v4l xserver-xorg-video-vesa xserver-xorg-video-vmware
  xserver-xorg-video-voodoo

reinstalled them
 then updated to 10.10 now all seems fixed