When I start compizconfig-settings-manager, I get the message command not found, but apt-get says that it is installed.
Searching for the reason, I found that compizconfig-settings-manager was updated in the last system update, the log says "compizconfig-settings-manager:amd64 (0.9.5.92-0ubuntu3, 0.9.8+bzr3287-0linaro3)". There (and also in many other entries) appears this linaro, which seems to be the problem. Because few days ago, I added a repository:
sudo add-apt-repository ppa:linaro-maintainers/overlay
Now I wanted to remove it with
sudo add-apt-repository -r ppa:linaro-maintainers/overlay
But it failed with the message (no module named Linaro). I found another way to remove this repository: I deleted the file for this repository in /etc/apt/sources.list.d/
I thought now I could just make a system update to get back the old packages, but the update manager says that all my packages are the newest version. So how can I get rid of those linaro-packages?