Hm, your journal doesn't seem to contain an attempt to suspend, so this might have been blocked by the upper layers. As you said that suspend works correctly with the indicator menu, this looks like a bug with unity-system-settings.
** Package changed: systemd (Ubuntu) => unity-settings-daemon (Ubuntu) -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to unity-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1435269 Title: System does not suspend when lid closed Status in unity-settings-daemon package in Ubuntu: New Bug description: Under Utopic closing the laptop lid would suspend the system. Since a Vivid upgrade this no longer happens (the external screen goes blank for about a second, then the desktop comes back as before) The system power settings show "When lid is closed: suspend" as before, it just gets ignored. The menu "suspend" option does suspend correctly. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: systemd 219-4ubuntu8 ProcVersionSignature: Ubuntu 3.19.0-9.9-generic 3.19.1 Uname: Linux 3.19.0-9-generic x86_64 ApportVersion: 2.16.2-0ubuntu4 Architecture: amd64 CurrentDesktop: Unity Date: Mon Mar 23 10:49:19 2015 InstallationDate: Installed on 2014-11-29 (113 days ago) InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1) MachineType: LENOVO 20344 ProcEnviron: LANGUAGE=en_GB:en PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_GB.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-9-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 SourcePackage: systemd UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/09/2014 dmi.bios.vendor: LENOVO dmi.bios.version: 96CN25WW(V1.11) dmi.board.asset.tag: 31900058WIN dmi.board.name: INVALID dmi.board.vendor: LENOVO dmi.board.version: 31900058WIN dmi.chassis.asset.tag: 31900058WIN dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo Yoga 2 13 dmi.modalias: dmi:bvnLENOVO:bvr96CN25WW(V1.11):bd07/09/2014:svnLENOVO:pn20344:pvrLenovoYoga213:rvnLENOVO:rnINVALID:rvr31900058WIN:cvnLENOVO:ct10:cvrLenovoYoga213: dmi.product.name: 20344 dmi.product.version: Lenovo Yoga 2 13 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity-settings-daemon/+bug/1435269/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp