Alt+Shift+Tab doesn't work unless Alt+Tab is pressed first.
The keyboard shortcut Alt-Shift-Tab does nothing unless Alt-Tab is pressed first (and Alt is continued to be held down). It should be possible to use the keyboard window switcher in reverse order without having to go forward first. (Other desktops such as Windows, GNOME Shell, etc. allow this.) This also affects the Ctrl+Alt+Shift+Tab shortcut (to show windows from all workspaces).
If this isn't fixed, I guess the help article will have to be a bit more complex to explain that.
To quote from the Desktop help:
When you hold down the Alt key and then press Tab, a window switcher appears. This shows a list of the windows you have open, with a preview.
You can continue pressing Tab as many times as you need to reach the window you want.
To switch to the previous window, hold down the Alt key and press Shift-Tab instead.
Only windows from the current workspace will be shown. To show windows from all workspaces, hold down the Ctrl and Alt keys and press Tab or Shift-Tab.
DistroRelease: Ubuntu 12.04
Package: unity 5.8.0-0ubuntu1
Uname: Linux 3.2.0-20-generic x86_64
Date: Sun Mar 25 10:15:44 2012
UpgradeStatus: No upgrade log present (probably fresh install)
|Changed in unity:|
|assignee:||Andrea Azzarone (andyrock) → nobody|
|tags:||added: quantal raring|