Comment 41 for bug 971051

Same problem for me on a fresh 12.04.4 install (zbook 15, i7, nvidia quadro 1100, nvidia driver).
No workaround works. The alternate switcher just don't work.
I had to switch to KDE, which has it's own share of problems but at least alt-tab works. I'd like to get back to gnome classic (sometimes gnome shell freezes).

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04.4 LTS
Release: 12.04
Codename: precise

$ uname -a
Linux *** 3.11.0-17-generic #31~precise1-Ubuntu SMP Tue Feb 4 21:25:43 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

$ dpkg -l *compiz*|grep ii
ii compiz 1:0.9.7.12-0ubuntu3 OpenGL window and compositing manager
ii compiz-core 1:0.9.7.12-0ubuntu3 OpenGL window and compositing manager
ii compiz-gnome 1:0.9.7.12-0ubuntu3 OpenGL window and compositing manager - GNOME window decorator
ii compiz-plugins 1:0.9.7.12-0ubuntu3 OpenGL window and compositing manager - plugins
ii compiz-plugins-default 1:0.9.7.12-0ubuntu3 OpenGL window and compositing manager - default plugins
ii compiz-plugins-main 1:0.9.7.0~bzr19-0ubuntu10.1 Compiz plugins - main collection
ii compiz-plugins-main-default 1:0.9.7.0~bzr19-0ubuntu10.1 Compiz plugins - main default collection
ii compizconfig-backend-gconf 0.9.5.92-0ubuntu5 Compiz Fusion configuration system - gconf backend
ii compizconfig-settings-manager 0.9.5.92-0ubuntu3 Compiz configuration settings manager
ii libcompizconfig0 0.9.7.0~bzr428-0ubuntu6 Settings library for plugins - OpenCompositing Project
ii python-compizconfig 0.9.5.94-0ubuntu4 Compizconfig bindings for python