Public bug reported: I did not fully understand what actions cause message tray disappears. In most cases it disappears when few messages from different buddies was received in one time. Also sometimes tray dissapears when screen is locked and there was recived few messages from two or more buddies.
When message tray dissapears in session.log appears next lines (gnome-shell:3573): Clutter-WARNING **: Actor '<unnamed>[<StBin>:0x9e6b9d0]' should not be mapped if parent '<notification-container>[<StWidget>:0x9ad16e8]'is not visible JS ERROR: !!! Error calling onComplete JS ERROR: !!! message = '"this._notification is null"' JS ERROR: !!! fileName = '"/usr/share/gnome-shell/js/ui/messageTray.js"' JS ERROR: !!! lineNumber = '2240' JS ERROR: !!! stack = '"()@/usr/share/gnome-shell/js/ui/messageTray.js:2240 wrapper()@/usr/share/gjs-1.0/lang.js:204 ("_notificationState",2,wrapper,[object Object],(void 0))@/usr/share/gnome-shell/js/ui/messageTray.js:2063 wrapper("_notificationState",2,wrapper,[object Object],(void 0))@/usr/share/gjs-1.0/lang.js:204 ("_notificationState",2,wrapper,[object Object],(void 0))@/usr/share/gnome-shell/js/ui/tweener.js:109 _callOnFunction((function () {oldHandler.apply(eventScope, oldParams);handler(target);}),"onComplete",[object Object],[object _private_St_Widget],[object Array])@/usr/share/gjs-1.0/tweener/tweener.js:202 _updateTweenByIndex(0)@/usr/share/gjs-1.0/tweener/tweener.js:332 _updateTweens()@/usr/share/gjs-1.0/tweener/tweener.js:344 _onEnterFrame([object Object])@/usr/share/gjs-1.0/tweener/tweener.js:359 _emit("prepare-frame")@/usr/share/gjs-1.0/signals.js:124 (405)@/usr/share/gnome-shell/js/ui/tweener.js:249 wrapper(405)@/usr/share/gjs-1.0/lang.js:204 ([object _private_Clutter_Timeline],405)@/usr/share/gnome-shell/js/ui/tweener.js:224 "' JS ERROR: !!! Exception was: TypeError: this._notification is null JS ERROR: !!! message = '"this._notification is null"' JS ERROR: !!! fileName = '"/usr/share/gnome-shell/js/ui/messageTray.js"' JS ERROR: !!! lineNumber = '2280' JS ERROR: !!! stack = '"()@/usr/share/gnome-shell/js/ui/messageTray.js:2280 wrapper()@/usr/share/gjs-1.0/lang.js:204 ()@/usr/share/gnome-shell/js/ui/messageTray.js:1970 wrapper()@/usr/share/gjs-1.0/lang.js:204 ()@/usr/share/gnome-shell/js/ui/messageTray.js:1925 wrapper()@/usr/share/gjs-1.0/lang.js:204 "' ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: gnome-shell 3.6.2-0ubuntu0.2 ProcVersionSignature: Ubuntu 3.5.0-19.30-generic 3.5.7 Uname: Linux 3.5.0-19-generic i686 ApportVersion: 2.6.1-0ubuntu6 Architecture: i386 CheckboxSubmission: 2ea33190e5f581bedd2dbf14be2f26be CheckboxSystem: 4ed15c40009aa6f7770f606350a390a2 Date: Fri Nov 30 13:50:31 2012 DisplayManager: gdm MarkForUpload: True ProcEnviron: LANGUAGE=ru:en TERM=xterm PATH=(custom, no user) LANG=ru_RU.UTF-8 SHELL=/bin/bash SourcePackage: gnome-shell UpgradeStatus: Upgraded to quantal on 2012-11-01 (28 days ago) ** Affects: gnome-shell (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug i386 package-from-proposed quantal third-party-packages -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1085010 Title: Message tray disappears in some conditions To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1085010/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs