I noticed a similar problem with an amd64 install of oneiric. I currently have several application windows opened and have problems with the display of the window switcher.
If I invoke alt tab on a desktop with a window I can see that the switcher window is displayed behind the application window (I will add a screenshot showing this). On an empty desktop this display is naturally correct. unity: 4.22.0-0ubuntu3 metacity: 1:2.34.1-1ubuntu4 01:05.0 VGA compatible controller: ATI Technologies Inc Radeon HD 3200 Graphics [ 14.929] (II) Module radeon: vendor="X.Org Foundation" [ 14.929] compiled for 1.10.2.902, module version = 6.14.99 [ 14.929] Module class: X.Org Video Driver [ 14.929] ABI class: X.Org Video Driver, version 10.0 ** Attachment added: "Screenshot showing the bug (slightly modified for privacy reasons)" https://bugs.launchpad.net/ubuntu/+source/unity/+bug/871285/+attachment/2553697/+files/Screenshot%20window%20switcher.jpg -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/871285 Title: Alt+Tab doesnt work if there are a lot of windows opened To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/871285/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs