As an example I can report "sunbird", which replaced (along with Thunderbird) Evolution in my system. This calendar system works well and implements for notifications the same behaviour I theorized in the previous comment.
-- Evolution alarm notification does not persist after snooze and reboot https://bugs.launchpad.net/bugs/331347 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
