I am in exactly the same situation as Brice. I used Metacity compositor in previous versions, and the problems only started to occur with Maverick.
This affects AMD64 as well, with the final release of Maverick. The problem occurs in two situations which I can find: 1) When a menu (context or otherwise) is exited, the menu sometimes is not hidden. 2) When an image or selection is dragged in Chromium browser. Presumably, this uses the same mechanism to show the selection being dragged as other applications use to show menus. Once the menu is no longer supposed to be on the screen (I.E. it has been exited, but garbage still remains visible), interaction with the garbage goes to the window behind it. Applications such as X Window Information are unable to detect the garbage. ** Tags added: amd64 ** Description changed: Binary package hint: metacity If metacity used as compositing manager with /apps/metacity/general/compositing_manager true, sometimes garbage - appear on screen while menu disappear + appear on screen while menu disappear. ProblemType: Bug DistroRelease: Ubuntu 10.10 Package: metacity 1:2.30.2-0ubuntu1 ProcVersionSignature: Ubuntu 2.6.35-22.33-generic 2.6.35.4 Uname: Linux 2.6.35-22-generic i686 Architecture: i386 Date: Sun Sep 26 19:45:32 2010 InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Alpha i386 (20100926) ProcEnviron: - LANG=hu_HU.utf8 - SHELL=/bin/bash + LANG=hu_HU.utf8 + SHELL=/bin/bash SourcePackage: metacity -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to metacity in ubuntu. https://bugs.launchpad.net/bugs/648267 Title: Metacity as compositing manager left garbage on screen when menu disappear -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs