Exactly the same here. Same graphic card and same problem.
I tried to solve the problem with some combinations of kernel and drivers. And the results:
kernel 2.6.31-15 + default driver set = freeze kernel 2.6.31-15 + ubuntu-x-swat set = freeze kernel 2.6.31-15 + xorg-edgers set = freeze kernel 2.6.32-rc8 + default driver set = freeze kernel 2.6.32-rc8 + ubuntu-x-swat driver set = freeze kernel 2.6.32-rc8 + xorg-edgers driver set = freeze
Exactly the same here. Same graphic card and same problem.
I tried to solve the problem with some combinations of kernel and drivers. And the results:
kernel 2.6.31-15 + default driver set = freeze
kernel 2.6.31-15 + ubuntu-x-swat set = freeze
kernel 2.6.31-15 + xorg-edgers set = freeze
kernel 2.6.32-rc8 + default driver set = freeze
kernel 2.6.32-rc8 + ubuntu-x-swat driver set = freeze
kernel 2.6.32-rc8 + xorg-edgers driver set = freeze