You need to install the package "compiz-plugins" to get the switcher plugin(s).
** Description changed: When using the Gnome Classic session (with Compiz) in Ubuntu Precise Pangolin, I cannot use alt + tab to switch applications. + + WORKAROUND: + 1. Install packages: + sudo apt-get install compiz-plugins compizconfig-settings-manager + 2. Run "ccsm" + 3. Scroll down to Window Management and enable (tick) "Application Switcher". + ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: gnome-panel 1:3.4.0-0ubuntu1 Uname: Linux 3.3.0-030300-generic x86_64 ApportVersion: 2.0-0ubuntu2 Architecture: amd64 Date: Sun Apr 1 21:01:11 2012 InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120108) ProcEnviron: LANGUAGE=en_GB:en TERM=xterm LANG=en_GB.UTF-8 SHELL=/bin/bash SourcePackage: gnome-panel UpgradeStatus: No upgrade log present (probably fresh install) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/971051 Title: No Alt+Tab in gnome classic session (switcher plugin not loaded) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/971051/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs