I'm having this exact problem in Saucy amd64 (compiz 0.9.10). I have no clue about what triggered it.
Should I reopen the bug? compiz 1:0.9.10+13.10.20 all unity 7.1.2+13.10.20131 amd64 unity-services 7.1.2+13.10.20131 amd64 ** Attachment added: "dash in background.png" https://bugs.launchpad.net/unity/+bug/906231/+attachment/3897285/+files/dash%20in%20background.png -- You received this bug notification because you are a member of DX Packages, which is subscribed to unity in Ubuntu. Matching subscriptions: dx-packages https://bugs.launchpad.net/bugs/906231 Title: Unity rendered behind windows Status in Compiz: Fix Released Status in Compiz 0.9.9 series: Fix Committed Status in Unity: Invalid Status in Unity 5.0 series: Invalid Status in Unity 6.0 series: Invalid Status in “compiz” package in Ubuntu: Fix Released Status in “unity” package in Ubuntu: Invalid Bug description: Confirmed in Ubuntu 11.10, 12.04 and 12.10... Unity randomly goes behind other windows, which should never happen. ORIGINAL DESCRIPTION: Unity's Dock disappears behind all other windows, as you can see from the attached screenshot (making the dock just visible through the shortcut Command+W). Once it has disappeared, the only workaround is to close all applications/restart the desktop to be able to access dock icons or launch any applications through text search, since everything has disappeared to an inaccessible layer. To manage notifications about this bug go to: https://bugs.launchpad.net/compiz/+bug/906231/+subscriptions -- Mailing list: https://launchpad.net/~dx-packages Post to : dx-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~dx-packages More help : https://help.launchpad.net/ListHelp