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[Bug 1561974] Re: [Lenovo T460s] freeze on battery + lid close


Thanks, Lukas. The patch has evolved a bit, so it could be the v4 patch
as (I think) linked above, or the one I linked to. I'm not keen on
installing a third party kernel. I will have a lot of systems to deploy
this to and will need to track future updates to Ubuntu's 4.4.0-xx, so
it's not just a case of getting it working. I'd also like to use secure
boot, which AIUI would rule out rolling my own kernels in practical
terms. Ideally I'd like 42341f87ba1bee4c5be95038c24abb69cbcf361a or
newer added as a "SAUCE" patch (if it's not added upstream-- I also need
to figure out how it gets from the ACPI branch to stable, and whether
that's 4.4.x or 4.5.x; https://www.kernel.org/ seems to contradict
itself about which is "stable") into 4.4.0-17+ I'll keep and eye on
kernel/ubuntu/+source/linux/+git/xenial/log/?h=master-next and try to
figure out how to ask for that.

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  [Lenovo T460s] freeze on battery + lid close

Status in linux package in Ubuntu:
Status in linux source package in Xenial:

Bug description:
  The laptop freezes when on battery power and the lid is closed.

  Relevant bug: https://bugzilla.kernel.org/show_bug.cgi?id=113551

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-15-generic 4.4.0-15.31
  ProcVersionSignature: Ubuntu 4.4.0-15.31-generic 4.4.6
  Uname: Linux 4.4.0-15-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
   /dev/snd/pcmC0D0p:   luki       1021 F...m pulseaudio
   /dev/snd/controlC0:  luki       1021 F.... pulseaudio
  CurrentDesktop: X-Cinnamon
  Date: Fri Mar 25 13:46:30 2016
  InstallationDate: Installed on 2016-03-09 (15 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160307)
  MachineType: LENOVO 20FAA01200
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-15-generic root=UUID=9137cae3-ceaa-4c5f-a4bd-4e0473140061 ro quiet splash vt.handoff=7
   linux-restricted-modules-4.4.0-15-generic N/A
   linux-backports-modules-4.4.0-15-generic  N/A
   linux-firmware                            1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/15/2016
  dmi.bios.vendor: LENOVO
  dmi.bios.version: N1CET37W (1.05 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20FAA01200
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Defined
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: dmi:bvnLENOVO:bvrN1CET37W(1.05):bd01/15/2016:svnLENOVO:pn20FAA01200:pvrThinkPadT460s:rvnLENOVO:rn20FAA01200:rvrNotDefined:cvnLENOVO:ct10:cvrNone:
  dmi.product.name: 20FAA01200
  dmi.product.version: ThinkPad T460s
  dmi.sys.vendor: LENOVO

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