Closing because of 'The problem seems to be fixed in upstream version of notification-daemon 0.3.7' in original post.
** Changed in: notification-daemon (Ubuntu) Status: Confirmed => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/102128 Title: Notification daemon leaks X11 windows To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/notification-daemon/+bug/102128/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs