ubuntu precise linux-image-3.2.0-26-generic-pae, nvidia-current-updates v295.49: Same problem. In the past, while trying to isolate the problem, reverted to basic VGA drivers and power management problems went away. Re-install any available version of nvidia from ubuntu default repos and the problem comes back: freeze during power-down or reboot.
ubuntu precise linux-image- 3.2.0-26- generic- pae, nvidia- current- updates v295.49: Same problem. In the past, while trying to isolate the problem, reverted to basic VGA drivers and power management problems went away. Re-install any available version of nvidia from ubuntu default repos and the problem comes back: freeze during power-down or reboot.