Ubuntu 12.04 fails to boot into Unity 3d interface(compiz crashes) after installing proprietary Nvidia drivers

[Saji Nediyanchath]

Hi,
   I have installed the propriertary drivers for Nvidia via the additional drivers(jockey) tool. The opensource driver allowed me to use the system in Ubntu 3d. But performance was not very good. So I decided to give the proprietary driver a try, and installed it.
Now when I boot into Ubuntu 3d, i get a blacvk screen, if i keep pressing some keyboard keys, finally apport runs reporting that compiz has crashed(apport reporting mesage, has no window decorations), but I'm unable to click buttons on that. So unable to report the bug from there. Now, I'm able to enter Ubuntu using the Unity 2d interface, which seems to be quite stable. As a matter of fact I'm reporting from firefox from within that session.
  I'll atatch some log messages and command outputs that I could think of. Hope that this helps to find the issue. Please tell me if any more information has to be made available.

[Saji Nediyanchath (saji89)]

Generated report for this bug from apport., at-
https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/993189

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.