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[Oliver Kirchkamp <oliver@xxxxxxxxxxxx>]

Regarding your question about different releases: The Lenovo helix
requires kernel 4.2 and above (otherwise it does not detect its
keyboard). So I can not say anothing about pre 15.10 releases.

As I said above, the problem also occurs with Debian testing.

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https://bugs.launchpad.net/bugs/1520965

Title:
  Lenovo Helix does not wake up from suspend

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  System goes to sleep, indicator does flash slowly as expected, but
  there is no way to wake up (Power Button, Lid open, Enter, ...). The
  only way to recover is to press power button for more than 4 seconds,
  and then power on again. pm-hibernate does work.

  Problem appears with 4.2.0-18-generic kernel, also with 4.4-rc2 (also
  under Debian testing kernel 4.2.6-1)

  Problem appears with terminal pm-suspend (with and without X running),
  lid close suspend, gui suspend.

  The “resume-trace” yields the following magic:
  [    2.228057]   Magic number: 1:0:0
  [    2.228158] rtc_cmos 00:02: setting system clock to 2001-01-01 00:00:18 UTC (978307218)

  (while without resume trace it says
  [    2.226884]   Magic number: 7:269:577
  [    2.226985] rtc_cmos 00:02: setting system clock to 2015-11-30 09:33:06 UTC (1448875986)
  )

  The content of /proc/acpi/wakeup (with 4.4-rc2) is the following:

  Device	S-state	  Status   Sysfs node
  LID	  S4	*enabled   platform:PNP0C0D:00
  SLPB	  S3	*enabled   platform:PNP0C0E:00
  IGBE	  S4	*disabled
  PXSX	  S4	*disabled
  EXP2	  S4	*disabled  pci:0000:00:1c.1
  PXSX	  S4	*disabled  pci:0000:06:00.0
  PXSX	  S4	*disabled
  XHCI	  S3	*enabled   pci:0000:00:14.0
  EHC1	  S3	*disabled
  PWRB	  S0	*enabled   platform:PNP0C0C:00

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: linux-image-4.2.0-18-generic 4.2.0-18.22
  ProcVersionSignature: Ubuntu 4.2.0-18.22-generic 4.2.3
  Uname: Linux 4.2.0-18-generic x86_64
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  CurrentDesktop: i3
  Date: Sun Nov 29 18:43:47 2015
  HibernationDevice: RESUME=UUID=f98d2c71-4853-418e-a6e7-8ab0b045b03b
  InstallationDate: Installed on 2015-11-27 (2 days ago)
  InstallationMedia: Xubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  MachineType: LENOVO 20CGCTO1WW
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-18-generic.efi.signed root=UUID=7c946f64-259a-4f17-9583-1a6797af1250 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.2.0-18-generic N/A
   linux-backports-modules-4.2.0-18-generic  N/A
   linux-firmware                            1.149.2
  SourcePackage: linux
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/21/2015
  dmi.bios.vendor: LENOVO
  dmi.bios.version: N17ET80W (1.80 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20CGCTO1WW
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0E50512 STD
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 11
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: dmi:bvnLENOVO:bvrN17ET80W(1.80):bd08/21/2015:svnLENOVO:pn20CGCTO1WW:pvrThinkPadHelix2nd:rvnLENOVO:rn20CGCTO1WW:rvrSDK0E50512STD:cvnLENOVO:ct11:cvrNone:
  dmi.product.name: 20CGCTO1WW
  dmi.product.version: ThinkPad Helix 2nd
  dmi.sys.vendor: LENOVO

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