As indicated in https://github.com/linuxmint/Cinnamon/issues/4060#issuecomment-93941975, Cinnamon tests for systemd-logind or old upower:
https://github.com/linuxmint/cinnamon-session/blob/master/cinnamon- session/csm-logout-dialog.c#L190 Apparently, the new systemd-login is still not supported. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1446276 Title: Suspend not available in Cinnamon after upgrade to Ubuntu 15.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cinnamon-session/+bug/1446276/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
