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[Albert <sapristi@xxxxxxxxx>]

Additionally the following bug seems related to this:

  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1391476

Christopher, you also replied to that bug. Do you think it's the same?

What is the XHC1 under /proc/acpi/wakeup ? Google seems to not find a
manual page for wakeup.

Bug 1391476 claims it's a USB wakeup issue. I tend to agree from
incidental observations, e.g. plugging/unplugging USB devices to a
sleeping computer (my macbook pro 11,1) should not wake it up, but it
does.

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https://bugs.launchpad.net/bugs/1371159

Title:
  [MacBookPro11,1] Won't suspend twice consecutively

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  I cannot make a MacBookPro 11,1 suspend. When putting the lid down, acpi_listen prints:
  button/lid LID close
  button/lid LID open

  ... so the lid is signalling correctly. Upon opening, the screensaver
  prompt is present, and typing in the password brings me back to the
  desktop. Nothing is found in dmesg.

  When choosing "suspend" from the top-right power menu, the screen goes
  black and shortly lights up again, showing the screensaver login
  prompt. Typing in the password brings me back to the desktop as if
  nothing had happened.

  To remark that the power menu in the System Settings shows sometimes
  "Suspend" as greyed out.

  ---
  ApportVersion: 2.14.1-0ubuntu3.6
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  albert     2149 F.... pulseaudio
   /dev/snd/controlC0:  albert     2149 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 14.04
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2014-09-16 (86 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  MachineType: Apple Inc. MacBookPro11,1
  NonfreeKernelModules: wl
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-43-generic root=UUID=1fe82ec9-9c83-4e33-9506-2f7afb8d9d64 ro libata.force=noncq quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.13.0-43.72-generic 3.13.11.11
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-43-generic N/A
   linux-backports-modules-3.13.0-43-generic  N/A
   linux-firmware                             1.127.10
  Tags:  trusty
  Uname: Linux 3.13.0-43-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 02/12/2014
  dmi.bios.vendor: Apple Inc.
  dmi.bios.version: MBP111.88Z.0138.B07.1402121134
  dmi.board.asset.tag: Base Board Asset Tag#
  dmi.board.name: Mac-189A3D4F975D5FFC
  dmi.board.vendor: Apple Inc.
  dmi.board.version: MacBookPro11,1
  dmi.chassis.type: 10
  dmi.chassis.vendor: Apple Inc.
  dmi.chassis.version: Mac-189A3D4F975D5FFC
  dmi.modalias: dmi:bvnAppleInc.:bvrMBP111.88Z.0138.B07.1402121134:bd02/12/2014:svnAppleInc.:pnMacBookPro11,1:pvr1.0:rvnAppleInc.:rnMac-189A3D4F975D5FFC:rvrMacBookPro11,1:cvnAppleInc.:ct10:cvrMac-189A3D4F975D5FFC:
  dmi.product.name: MacBookPro11,1
  dmi.product.version: 1.0
  dmi.sys.vendor: Apple Inc.

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