I think this is a workaround: gsettings set org.gnome.desktop.sound event-sounds false
Out of a hunch looking at the backtrace. ** Attachment added: "bt in console" https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/929447/+attachment/2727563/+files/fbcat2.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/929447 Title: gnome-shell freezes when entering "overview" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/929447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs