I'm also having the same problem. This bug report (from Debian) seems to be relevant:
http://us.generation-nt.com/answer/bug-648378-notification-daemon-stops- displaying-pop-ups-after-20-unacknowledged-messages-help-205388441.html ~~ After 20 pop-ups that are not manually closed by clicking on them notification-daemon stops showing pop-ups and returns the error: error sender=:1.418 -> dest=:1.484 error_name=org.freedesktop.Notifications.MaxNotificationsExceeded rep string "Exceeded maximum number of notifications" This error is generated in daemon.c at line 185. I commented out the entire if statement and notifications started showing as expected. The items are only removed from the queue when the notification is manually closed by nd-queue.c::on_notification_close(). I am not sure what the purpose of limiting the queue was, but the items should also be dequeued when the pop-ups time out (in nd-queue.c::on_bubble_destroyed), otherwise the queue will grow forever, using more and more memory. ~~ If I read this right: - It's what could be considered a memory leak: objects are put into the notification queue, but not discarded. That's the genius bit: The user has to click on it to clean up the notification queue, but after a few seconds, the user *can't* click on it anymore. Perfect! - The limit on the queue size is a crude way to prevent memory from leaking indefinitely, but it also means (stupidly) that notifications *stop working altogether* after fewer than two dozen notifications are displayed. (!!!!) If this analysis is correct, you can prevent the error by clicking on *every notification* before it disappears automatically. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/974603 Title: notification-daemon crashed with signal 5 in g_variant_get_boolean() To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/notification-daemon/+bug/974603/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
