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[Lance <lance36@xxxxxxxxx>]

Confirmed: BUG its not present on BIOS Revision: 1.16.

# sudo dmidecode

BIOS Information
    Vendor: LENOVO
    Version: J9ET37WW (1.16 )
    Release Date: 11/27/2013
    Address: 0xE0000
    Runtime Size: 128 kB
    ROM Size: 16384 kB
    Characteristics:
        PCI is supported
        PNP is supported
        BIOS is upgradeable
        BIOS shadowing is allowed
        Boot from CD is supported
        Selectable boot is supported
        ACPI is supported
        USB legacy is supported
        BIOS boot specification is supported
        Targeted content distribution is supported
        UEFI is supported
    BIOS Revision: 1.16
    Firmware Revision: 1.16


now... its there a way to safely downgrade? :)

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https://bugs.launchpad.net/bugs/1331077

Title:
  [Lenovo ThinkPad Edge E540] suspend/resume failure

Status in “linux” package in Ubuntu:
  Triaged

Bug description:
  suspend to RAM failed before it was completed:
  * fan was still on and
  * Fn-F1- & Fn-F4-status LEDs were still on (signifying muted speakers and microphone respectively)
  * nevertheless the general ThinkPad LED (the i's dot) (/proc/acpi/ibm/led 0) behaved like normal: slowly blinking, which normally means "I'm suspended to RAM."
  * however resume was impossible: wakeup failed through mouse clicks, various keyboard keys and combinations and also the power key, only a hard reset (5s or so holding down the power key) could bring it back to life

  Adding the kernel cmdline option acpi_sleep=nonvs was of no avail,
  too.

  I recently upgraded to a new BIOS v2.07 [2], I think the problem
  exists since then.

  Update
  ======
  I confirmed that this is definitely a BIOS issue. The last working BIOS is v1.61 [3], so the change was introduced by v2.07 [2]. Installing the latest v2.08 [4] does not fix this problem.

  So this is the changelog for v2.07 [2]:
  - (Fix) Fixed an issue that system will auto wakeup after shutdown when battery capacity is under 15% on DC only.
  - (Fix) Fixed an issue related to APS.
  - (New) Added support for new GPU config.

  By the way, I could not find a new GPU config option in the BIOS, same
  old choice <Integrated> vs. <Optimus>, nothing new.

  ProblemType: KernelOops
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-30-generic 3.13.0-30.54
  ProcVersionSignature: Ubuntu 3.13.0-30.54-generic 3.13.11.2
  Uname: Linux 3.13.0-30-generic x86_64
  Annotation: This occured during a previous suspend and prevented it from resuming properly.
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  xxxxxx     2499 F.... pulseaudio
   /dev/snd/controlC0:  xxxxxx     2499 F.... pulseaudio
  Date: Tue Jun 17 17:16:54 2014
  DuplicateSignature: suspend/resume:LENOVO 20C6S00200:J9ET87WW (2.07 )
  ExecutablePath: /usr/share/apport/apportcheckresume
  ExecutableTimestamp: 1400281919
  Failure: suspend/resume
  HibernationDevice: RESUME=UUID=2ecc68b9-65e3-4cee-9b2a-d41ff651e4e8
  InstallationDate: Installed on 2014-01-06 (161 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  InterpreterPath: /usr/bin/python3.4
  MachineType: LENOVO 20C6S00200
  ProcCmdline: /usr/bin/python3 /usr/share/apport/apportcheckresume
  ProcCwd: /
  ProcEnviron:
   TERM=linux
   PATH=(custom, no user)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-30-generic.efi.signed root=/dev/mapper/ubuntuvg-root ro quiet splash "acpi_osi=!Windows 2012" pcie_aspm=force intel_pstate=enable vt.handoff=7
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-30-generic N/A
   linux-backports-modules-3.13.0-30-generic  N/A
   linux-firmware                             1.127.3
  SourcePackage: linux
  Title: [LENOVO 20C6S00200] suspend/resume failure
  UpgradeStatus: Upgraded to trusty on 2014-06-12 (5 days ago)
  UserGroups:

  dmi.bios.date: 05/13/2014
  dmi.bios.vendor: LENOVO
  dmi.bios.version: J9ET87WW (2.07 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20C6S00200
  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:bvrJ9ET87WW(2.07):bd05/13/2014:svnLENOVO:pn20C6S00200:pvrThinkPadEdgeE540:rvnLENOVO:rn20C6S00200:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 20C6S00200
  dmi.product.version: ThinkPad Edge E540
  dmi.sys.vendor: LENOVO

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