Comment 19 for bug 1464917

I have a hunch that this bug only occurs on systems upgraded from a previous Ubuntu version, perhaps with replacement of upstart with systemd, but not on fresh Ubuntu 15.04 or 15.10 installations.
Everyone who is affected: is there anyone who started having this problem on a fresh 15.04 or later installation? Please let us know within a week. This may shed insight onto how this bug may be reproduced.

I've changed status to 'Confirmed' since it looks like all the information that could be provided has been provided. Developers and enthusiasts: if there is anything else we can do to help diagnose this, please let us know.