Comment 2 for bug 145782

I have a problem like this after modify some settings in CompizConfig Settings Manager (trying to enable cube).

The workspace applet show 4 workspace and when I clicked on it, I saw only my wallpaper. No, icons on the desktop, no panels, ...

So, I should be go to tty1, and type killall gnome-panel and switch back to my X session to relaunch the display all all components.

I try this several times, when I click on "workspace applet", all gnome component disappears. But before click on it, I can change to different workspace with ctrl-alt-arrow and in this case it worked, but the workspace-applet didn't work , it cannot show the correct workspace.

Solution :

Launch compiz-settings-manager and reset all parameters :

From http://ubuntu1501.blogspot.com/2007/08/compiz-fusion-upgrade-problems-trevinos.html

"If you don't know where to find CompizConfig Settings Manager (System>Preferences) or don't have an entry in your menu you can launch it by firing up a terminal and typing in: ccsm"

1. Select the preference option
2. Select the Reset to Defaults option

Now Compiz Fusion will reset and everything will work again.

After that, I have only two desktop.

I switch to no visual effect, update the settings of workspace applet : 2 to 4 workspaces and enable desktop effect.

Now, workspace-applet and compiz work together.