I am running ubuntu 12.04LTS and Iam having system freeze problems every time when I resume from lock, suspend, and hibernate.
This problem comes up only in unity (ubuntu) desktop not in unity 2D (ubuntu 2D) or Gnome Classic.
I don't have complete idea about it, but when click on ubuntu logo in my login box I can see 4 options such as Ubuntu, Ubuntu 2D, Gnome Classic and Gnome Classic (No effects).
My System freezes when I use it in Ubuntu environment.
Is Ubuntu environment unity 3D?
Thanks in Advance.