I would appreciate any suggestion.
to downgrade a package
in the version place you have to place whats the version you want to install .
I'm running 12.04 and using compiz version 1:0.9.7.8-0ubuntu1 without any problems. However when I had Unity it was a nightmare.
My solution, since I was upgrading from 10.10, was switch to Xubuntu 10.10 and to remove Unity at each upgrade step.
As a result, I ended up at Xubuntu 12.04 using 1:0.9.7.8-0ubuntu1 with very nice results.
I didn't have to remove Unity when upgrading from 11.10 to 12.04.
You may only have to remove Unity to get where you want to go.
I used the answer to this question for guidance.
Here are the suggested steps for 12.04...
Remove the following packages:
Note: After removing Unity using the above described method, provided LightDM hasn't been otherwise removed, you'll still be greeted with the LightDM desktop manager upon rebooting into Ubuntu. But with Unity removed, LightDM won't have any desktops to manage, and so attempting to log in from LightDM will result in an error message. From LightDM, you can use "CTRL+ALT+F1" to exit into a terminal, from which you can install a new desktop environment, if desired. For example, "sudo apt-get install gnome-core" can be used to install the Gnome Desktop Environment from the terminal, or "sudo apt-get install lxde" can be used to install LXDE from the terminal, etc. You will be given a choice between "lightdm" and "gdm" desktop managers during the desktop installation process. Selecting "lightdm" works with both the Gnome Desktop Environment and LXDE.
Note: When I ran the
Here is the result...!
This is a temporary fix for who want to use compiz 0.9.8.
(Do this at your own risk.)
Login to Gnome 3 session, and completely remove compiz. Then hit the following commands on the terminal.
Compiz shuld work better when you log back to Unity or Gnome Classic.