Comment 1 for bug 110470

What Xorg driver do you use?
I have the same problem when I use xorg-driver-fglrx. With "vesa" it works without any errors.

xorg-driver-fglrx:
  Installed: 7.1.0-8.37.6+2.6.22.2-7.2
linux-restricted-modules-2.6.22-7-generic:
  Installed: 2.6.22.2-7.2
kaffeine-xine:
  Installed: 0.8.4-0ubuntu3
libxine1:
  Installed: 1.1.7-1ubuntu1