Jono Bacon, as per http://download.lenovo.com/express/ddfm.html an update is available for your BIOS (1.43). If you update to this, does it change anything?
If not, could you please both specify what happened, and provide the output of the following terminal command: sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date Thank you for your understanding. ** Tags added: bios-outdated-1.43 needs-upstream-testing regression- potential ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete ** Summary changed: - [LENOVO 4239CTO] suspend/resume failure + [LENOVO ThinkPad T520 4239] suspend/resume failure -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1211128 Title: [LENOVO ThinkPad T520 4239] suspend/resume failure Status in “linux” package in Ubuntu: Incomplete Bug description: My T520 has stopped suspending and resuming. I close the lid and doesn't suspend. Not sure if this has anything to do with it, but I noticed it stopped suspending when I installed XMir. ProblemType: KernelOops DistroRelease: Ubuntu 13.10 Package: linux-image-3.10.0-6-generic 3.10.0-6.17 ProcVersionSignature: Ubuntu 3.10.0-6.17-generic 3.10.3 Uname: Linux 3.10.0-6-generic i686 Annotation: This occured during a previous suspend and prevented it from resuming properly. ApportVersion: 2.12-0ubuntu3 Architecture: i386 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: jono 1626 F.... pulseaudio Date: Sun Aug 11 19:13:14 2013 ExecutablePath: /usr/share/apport/apportcheckresume Failure: suspend/resume HibernationDevice: RESUME=UUID=c393e27b-dbde-45a2-b4ad-173dc6b0fd94 InstallationDate: Installed on 2013-05-05 (98 days ago) InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha i386 (20130504) InterpreterPath: /usr/bin/python3.3 MachineType: LENOVO 4239CTO MarkForUpload: True ProcCmdline: /usr/bin/python3 /usr/share/apport/apportcheckresume ProcEnviron: TERM=linux PATH=(custom, no user) ProcFB: 0 inteldrmfb 1 VESA VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.10.0-6-generic root=UUID=8e1541d7-f15f-47b5-8f6d-12b862cf688b ro quiet splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Daemon not responding. RelatedPackageVersions: linux-restricted-modules-3.10.0-6-generic N/A linux-backports-modules-3.10.0-6-generic N/A linux-firmware 1.113 SourcePackage: linux Title: [LENOVO 4239CTO] suspend/resume failure UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: dmi.bios.date: 12/06/2011 dmi.bios.vendor: LENOVO dmi.bios.version: 8AET56WW (1.36 ) dmi.board.asset.tag: Not Available dmi.board.name: 4239CTO dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr8AET56WW(1.36):bd12/06/2011:svnLENOVO:pn4239CTO:pvrThinkPadT520:rvnLENOVO:rn4239CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 4239CTO dmi.product.version: ThinkPad T520 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1211128/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp