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[Stephen Angelico <raaff35lightning@xxxxxxxxx>]

I dint know what is going on here - I just rebooted, logged in and suspended, which worked as it did 7 hours ago. What happened was:
Settings: Lid closed - on power, blank screen; on battery, suspend.
The lid was closed while the laptop was on power (that's how I leave it at night). I had to take it in a hurry, with its power cord, so I unplugged the cord, and saw the sleep light start flashing. While I was packing the power cord into his case, I heard a beep for suspending, then 1 second later, another beep for unsuspending. I rebooted when I had time, suspended and it succeeded.
I haven't tested whether there is a difference between closing the lid and pressing Fn-F4 (Thinkpad suspend trigger, seems to be the sleep button mentioned on the General tab in mate-power-preferences).

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https://bugs.launchpad.net/bugs/1362660

Title:
  [IBM 184348M] suspend/resume failure

Status in “linux” package in Ubuntu:
  Fix Released

Bug description:
  My laptop is an old Thinkpad R51e for which suspending does not work, with or without linux-firmware-nonfree. Without, calling a suspend would cause the laptop to fade the screen to black, flash the sleep light for a while, then be asleep for one second before waking up again without any trigger such as opening the lid or pressing a key. With linux-firmware-nonfree, calling a suspend causes a fade of the screen and the sleep light flashing as before, but the light keeps flashing and the fan keeps going for more time than I waited (at least 30 seconds), such that I did a hard shutdown.
  Ubuntu version: 14.10 Utopic Unicorn (development branch) - UbuntuMATE Alpha 2
  linux-firmware-non-free version: 1.16 (latest packaged at time of writing)

  ProblemType: KernelOops
  DistroRelease: Ubuntu 14.10
  Package: linux-image-3.16.0-10-generic 3.16.0-10.15
  ProcVersionSignature: Ubuntu 3.16.0-10.15-generic 3.16.1
  Uname: Linux 3.16.0-10-generic i686
  Annotation: This occured during a previous suspend and prevented it from resuming properly.
  ApportVersion: 2.14.6-0ubuntu2
  Architecture: i386
  CRDA:
   country AU: DFS-UNSET
   	(2402 - 2482 @ 40), (N/A, 20)
   	(5170 - 5250 @ 40), (3, 23)
   	(5250 - 5330 @ 40), (3, 23), DFS
   	(5735 - 5835 @ 40), (3, 30)
  Date: Fri Aug 29 00:55:44 2014
  DuplicateSignature: suspend/resume:IBM 184348M:78ET36WW (1.07 )
  ExecutablePath: /usr/share/apport/apportcheckresume
  ExecutableTimestamp: 1408437800
  Failure: suspend/resume
  HibernationDevice: RESUME=UUID=4d358988-246f-4712-afdf-d358ff67643c
  InstallationDate: Installed on 2014-08-27 (1 days ago)
  InstallationMedia: Ubuntu MATE 14.10 "Utopic Unicorn" - Alpha i386 (20140731)
  InterpreterPath: /usr/bin/python3.4
  Lsusb:
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
   Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: IBM 184348M
  ProcCmdline: /usr/bin/python3 /usr/share/apport/apportcheckresume
  ProcCwd: /
  ProcEnviron:
   TERM=linux
   PATH=(custom, no user)
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-10-generic root=UUID=dfec0088-7f1e-4ac6-a114-e68f5f95a911 ro quiet splash
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-10-generic N/A
   linux-backports-modules-3.16.0-10-generic  N/A
   linux-firmware                             1.132
  RfKill:
   0: phy0: Wireless LAN
   	Soft blocked: no
   	Hard blocked: no
  SourcePackage: linux
  Title: [IBM 184348M] suspend/resume failure
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:
   
  dmi.bios.date: 10/31/2005
  dmi.bios.vendor: IBM
  dmi.bios.version: 78ET36WW (1.07 )
  dmi.board.name: 184348M
  dmi.board.vendor: IBM
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: IBM
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnIBM:bvr78ET36WW(1.07):bd10/31/2005:svnIBM:pn184348M:pvrThinkPadR51e:rvnIBM:rn184348M:rvrNotAvailable:cvnIBM:ct10:cvrNotAvailable:
  dmi.product.name: 184348M
  dmi.product.version: ThinkPad R51e
  dmi.sys.vendor: IBM

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