I wonder if this is really systemd related, we know that unity-settings- daemon reveal some similar issues (though, most of the time, they are all lost and even restarting it isn't succifient as it misses some env variable to leak in the session).
So, let's figure out if it's systemd related first, can you try to reboot (ensure the upstart package is installed with yesterday's update) and select in grub under more option the upstart entry? Then, do you get the same behavior? Thanks! ** Changed in: systemd (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1435108 Title: Volume hotkeys stop working (dozens of seconds of delay) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1435108/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs