:~$ sudo apt-get install compiz # compiz-gnome Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. Since you only requested a single operation it is extremely likely that the package is simply not installable and a bug report against that package should be filed. The following information may help to resolve the situation: The following packages have unmet dependencies: compiz: Depends: compiz-decorator but it is not installable E: Broken packages :~$ sudo apt-get install compiz-decorator Reading package lists... Done Building dependency tree Reading state information... Done Package compiz-decorator is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source E: Package compiz-decorator has no installation candidate :~$ sudo dpkg -l compiz* libdecoration* Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed |/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad) ||/ Name Version Description +++-==============================-==============================-============================================================================ pn compiz (no description available) pn compiz-core (no description available) pn compiz-gnome (no description available) rc compiz-gtk 0.3.6-1ubuntu13 OpenGL window and compositing manager - Gtk window decorator rc compiz-plugins 0.3.6-1ubuntu13 OpenGL window and compositing manager - plugins ii libdecoration0 0.3.6-1ubuntu13 Compiz window decoration library :~$ sudo apt-get install libdecoration0 Reading package lists... Done Building dependency tree Reading state information... Done libdecoration0 is already the newest version. libdecoration0 set to manual installed. 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. user@user-desktop:~$ sudo apt-get update Get:1 http://archive.canonical.com feisty-commercial Release.gpg [191B] Ign http://archive.canonical.com feisty-commercial/main Translation-en_US Get:2 http://gb.archive.ubuntu.com feisty Release.gpg [191B] Ign http://gb.archive.ubuntu.com feisty/main Translation-en_US Hit http://archive.canonical.com feisty-commercial Release Ign http://gb.archive.ubuntu.com feisty/restricted Translation-en_US Ign http://gb.archive.ubuntu.com feisty/universe Translation-en_US Ign http://gb.archive.ubuntu.com feisty/multiverse Translation-en_US Ign http://gb.archive.ubuntu.com feisty/restricted Translation-en_US Ign http://gb.archive.ubuntu.com feisty/restricted Translation-en_US Get:3 http://gb.archive.ubuntu.com feisty-backports Release.gpg [191B] Ign http://gb.archive.ubuntu.com feisty-backports/main Translation-en_US Ign http://gb.archive.ubuntu.com feisty-backports/restricted Translation-en_US Ign http://gb.archive.ubuntu.com feisty-backports/universe Translation-en_US Hit http://archive.canonical.com feisty-commercial/main Packages Ign http://gb.archive.ubuntu.com feisty-backports/multiverse Translation-en_US Get:4 http://gb.archive.ubuntu.com feisty-updates Release.gpg [191B] Ign http://gb.archive.ubuntu.com feisty-updates/restricted Translation-en_US Ign http://gb.archive.ubuntu.com feisty-updates/main Translation-en_US Ign http://gb.archive.ubuntu.com feisty-updates/universe Translation-en_US Ign http://gb.archive.ubuntu.com feisty-updates/multiverse Translation-en_US Ign http://gb.archive.ubuntu.com feisty-updates/restricted Translation-en_US Get:5 http://gb.archive.ubuntu.com feisty-proposed Release.gpg [191B] Ign http://gb.archive.ubuntu.com feisty-proposed/main Translation-en_US Ign http://gb.archive.ubuntu.com feisty-proposed/restricted Translation-en_US Get:6 http://download.tuxfamily.org feisty Release.gpg [189B] Ign http://download.tuxfamily.org feisty/eyecandy Translation-en_US Ign http://gb.archive.ubuntu.com feisty-proposed/universe Translation-en_US Ign http://gb.archive.ubuntu.com feisty-proposed/multiverse Translation-en_US Hit http://gb.archive.ubuntu.com feisty Release Hit http://gb.archive.ubuntu.com feisty-backports Release Hit http://gb.archive.ubuntu.com feisty-updates Release Hit http://download.tuxfamily.org feisty Release Hit http://gb.archive.ubuntu.com feisty-proposed Release Hit http://gb.archive.ubuntu.com feisty/main Packages Hit http://gb.archive.ubuntu.com feisty/restricted Packages Hit http://gb.archive.ubuntu.com feisty/universe Packages Hit http://gb.archive.ubuntu.com feisty/multiverse Packages Hit http://gb.archive.ubuntu.com feisty/universe Sources Hit http://gb.archive.ubuntu.com feisty/restricted Packages Hit http://gb.archive.ubuntu.com feisty/main Sources Hit http://gb.archive.ubuntu.com feisty/restricted Sources Hit http://gb.archive.ubuntu.com feisty/restricted Packages Hit http://gb.archive.ubuntu.com feisty/restricted Sources Hit http://download.tuxfamily.org feisty/eyecandy Packages Hit http://gb.archive.ubuntu.com feisty-backports/main Sources Hit http://gb.archive.ubuntu.com feisty-backports/restricted Sources Hit http://gb.archive.ubuntu.com feisty-backports/universe Sources Hit http://gb.archive.ubuntu.com feisty-backports/main Packages Hit http://gb.archive.ubuntu.com feisty-backports/restricted Packages Hit http://download.tuxfamily.org feisty/eyecandy Sources Hit http://gb.archive.ubuntu.com feisty-backports/universe Packages Hit http://gb.archive.ubuntu.com feisty-backports/multiverse Packages Hit http://gb.archive.ubuntu.com feisty-backports/restricted Sources Hit http://gb.archive.ubuntu.com feisty-updates/restricted Packages Hit http://gb.archive.ubuntu.com feisty-updates/main Packages Hit http://gb.archive.ubuntu.com feisty-updates/universe Packages Hit http://gb.archive.ubuntu.com feisty-updates/multiverse Packages Hit http://gb.archive.ubuntu.com feisty-updates/restricted Sources Hit http://gb.archive.ubuntu.com feisty-updates/main Sources Hit http://gb.archive.ubuntu.com feisty-updates/universe Sources Hit http://gb.archive.ubuntu.com feisty-updates/restricted Packages Hit http://gb.archive.ubuntu.com feisty-updates/restricted Sources Hit http://gb.archive.ubuntu.com feisty-proposed/main Packages Hit http://gb.archive.ubuntu.com feisty-proposed/restricted Packages Hit http://gb.archive.ubuntu.com feisty-proposed/universe Packages Hit http://gb.archive.ubuntu.com feisty-proposed/multiverse Packages Fetched 6B in 0s (9B/s) Reading package lists... Done :~$ dpkg -l|grep compiz rc compiz-gtk 0.3.6-1ubuntu13 OpenGL window and compositing manager - Gtk rc compiz-plugins 0.3.6-1ubuntu13 OpenGL window and compositing manager - plug