I encountered this on Ubuntu Gnome 16.04 and the default Ubuntu 16.04. It's frozen for more than 2 mins before I can use it again.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1182685 Title: Gnome Shell freezes when pressing activity (Windows) key multiple times quickly To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1182685/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs