I'm seeing this as well on an Acer Aspire 5733. In fact on installation of the beta gnome-power-manager was not installed. Even after apt-get installing it and restarting issue persists.
:~$ cat /etc/lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=14.04 DISTRIB_CODENAME=trusty DISTRIB_DESCRIPTION="Ubuntu Trusty Tahr (development branch)" :~$ apt-cache policy gnome-power-manager gnome-power-manager: Installed: 3.8.2-1ubuntu2 Candidate: 3.8.2-1ubuntu2 Version table: *** 3.8.2-1ubuntu2 0 500 http://us.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages 100 /var/lib/dpkg/status -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1286430 Title: Suspend option when lid closed "greyed out" in Power Settings To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/1286430/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs