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[Keith McClelland <1380076@xxxxxxxxxxxxxxxxxx>]

I got that wrong yesterday, I think. IWhen the freeze patch is
installed, it seems to do something akin to suspending, but I haven't
figured out how to get it back (not power button or mouse movement).
Instead you have to hold the power button long enough to kill it and
then start over. Note that this computer bounces back in Windows 8.1
when you try "sleep". I understood that a kernel patch had fixed that,
but I'm up to date with Windows updates and that's what I see.

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https://bugs.launchpad.net/bugs/1380076

Title:
  Can't suspend on Surface Pro 3

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  With my Surface Pro 3 when I suspend from the GUI nothing happens. Doing it manually also fails, and nothing appears in dmesg:
  #echo "mem" > /sys/power/state

  Error while writing to stdout
  write_loop: Invalid argument

  And, more interestingly:
  cat /sys/power/state

  freeze disk

  Using the not-so-good-and-apparently-unsupported:
  echo "freeze" > /sys/power/state

  does seem to successfully suspend, however I cannot resume from this
  (assumed to be a separate issue).

  I am using a modified utopic unicorn kernel compiled from git at kernel.ubuntu.com, with the following patch to enable mykeyboard to work:
  http://www.spinics.net/lists/linux-input/msg34918.html

  The official kernel behaves identically, as does vanilla 3.17 from the
  mainline folder of kernel-ppa.

  WORKAROUND: Use hibernate.

  ---
  ApportVersion: 2.14.7-0ubuntu5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  jarrad     2491 F.... pulseaudio
   /dev/snd/controlC0:  jarrad     2491 F.... pulseaudio
  CurrentDesktop: XFCE
  DistroRelease: Ubuntu 14.10
  HibernationDevice: RESUME=UUID=178ac532-25db-4ef3-a587-f1fdd2649bf0
  InstallationDate: Installed on 2014-10-10 (57 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Alpha amd64 (20140923)
  MachineType: Microsoft Corporation Surface Pro 3
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.4-surface3 root=UUID=f6c17817-9127-4792-be23-a39a07e7f240 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.16.0-21.28-generic 3.16.4
  RelatedPackageVersions:
   linux-restricted-modules-3.16.4-surface3 N/A
   linux-backports-modules-3.16.4-surface3  N/A
   linux-firmware                           1.135
  Tags:  utopic
  Uname: Linux 3.16.4-surface3 x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 10/16/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 3.11.0350
  dmi.board.asset.tag: 0
  dmi.board.name: Surface Pro 3
  dmi.board.vendor: Microsoft Corporation
  dmi.board.version: 1
  dmi.chassis.asset.tag: 0
  dmi.chassis.type: 9
  dmi.chassis.vendor: Microsoft Corporation
  dmi.chassis.version: 1
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr3.11.0350:bd10/16/2014:svnMicrosoftCorporation:pnSurfacePro3:pvr1:rvnMicrosoftCorporation:rnSurfacePro3:rvr1:cvnMicrosoftCorporation:ct9:cvr1:
  dmi.product.name: Surface Pro 3
  dmi.product.version: 1
  dmi.sys.vendor: Microsoft Corporation

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