>For now, an easy workaround is to restart the shell (alt+F2, typing "r"), which fixes the problem for a while.
It doesn't work if you use wayland -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1514357 Title: Opening new windows or menus (e.g. "File") in programs, switching workspaces becomes slower and slower over time in Gnome Status in gnome-shell package in Ubuntu: Confirmed Bug description: During normal use, opening new windows, opening dropdown menus (e.g. "File", "View" in any program) becomes increasingly slow in Gnome. After reboot, all such events occur almost instantaneously, but during normal use over several hours (including suspending the laptop by closing the lid) such events become increasingly slow. After several hours of use, opening a dropdown menu might require several seconds of waiting, during which the UI is completely unresponsive and does not update. Every time an event is called, the syslog (/var/log/syslog) gets filled with messages like: Nov 9 10:02:40 rasmus-UX32VD gnome-session[1745]: (gnome-shell:1800): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed Nov 9 10:02:40 rasmus-UX32VD gnome-session[1745]: (gnome-shell:1800): Clutter-CRITICAL **: clutter_layout_manager_get_child_meta: assertion 'CLUTTER_IS_LAYOUT_MANAGER (manager)' failed Nov 9 10:02:40 rasmus-UX32VD gnome-session[1745]: (gnome-shell:1800): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed Nov 9 10:02:40 rasmus-UX32VD gnome-session[1745]: (gnome-shell:1800): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed Nov 9 10:02:40 rasmus-UX32VD gnome-session[1745]: (gnome-shell:1800): Clutter-CRITICAL **: clutter_layout_manager_get_child_meta: assertion 'CLUTTER_IS_LAYOUT_MANAGER (manager)' failed Nov 9 10:02:40 rasmus-UX32VD gnome-session[1745]: (gnome-shell:1800): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed Nov 9 10:02:40 rasmus-UX32VD gnome-session[1745]: (gnome-shell:1800): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed Nov 9 10:02:40 rasmus-UX32VD gnome-session[1745]: (gnome-shell:1800): Clutter-CRITICAL **: clutter_layout_manager_get_child_meta: assertion 'CLUTTER_IS_LAYOUT_MANAGER (manager)' failed Nov 9 10:02:40 rasmus-UX32VD gnome-session[1745]: (gnome-shell:1800): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed Nov 9 10:02:40 rasmus-UX32VD gnome-session[1745]: (gnome-shell:1800): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed Nov 9 10:02:40 rasmus-UX32VD gnome-session[1745]: (gnome-shell:1800): Clutter-CRITICAL **: clutter_layout_manager_get_child_meta: assertion 'CLUTTER_IS_LAYOUT_MANAGER (manager)' failed Nov 9 10:02:40 rasmus-UX32VD gnome-session[1745]: (gnome-shell:1800): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed It appears that the system is stalling while these events are being sent to syslog. I am using the following two extensions in gnome: https://extensions.gnome.org/extension/817/battery-status/ https://extensions.gnome.org/extension/584/taskbar/ This bug was present also with the Gnome version in Ubuntu 15.04. ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: gnome-shell 3.16.4-0ubuntu1 ProcVersionSignature: Ubuntu 4.2.0-17.21-generic 4.2.3 Uname: Linux 4.2.0-17-generic x86_64 ApportVersion: 2.19.1-0ubuntu4 Architecture: amd64 Date: Mon Nov 9 09:56:37 2015 DisplayManager: lightdm EcryptfsInUse: Yes InstallationDate: Installed on 2015-10-09 (30 days ago) InstallationMedia: It SourcePackage: gnome-shell UpgradeStatus: Upgraded to wily on 2015-10-30 (9 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1514357/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
