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[Bug 1570820] Re: Suspend failure

 

@peterriesde
My thoughts exactly. I want to avoid having to run an unofficial kernel. I mean,  on one hand I'm glad that I was able to find a work around (other than switching to another distro, since from I tested 2 other 4.4 based distros that don't appear to have this problem), but I'd rather be using the official supported kernel for added stability and security.

The latest official kernel that was pushed to proposed (4.4.0-22.38),
which is based on 4.4.7, still has this same bug, even though the
mainline 4.4.7 doesn't. However, it has another (unrelated) bug
regarding the my AMD Radeon HD 8870M, which doesn't happen on the
xenial-proposed build. Strange stuff...!!

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https://bugs.launchpad.net/bugs/1570820

Title:
  Suspend failure

Status in linux package in Ubuntu:
  Triaged

Bug description:
  My laptop fails to suspend. The screen turns off, but the fans
  continue to run (and it may actually get hotter). I wait and wait, and
  nothing happens (the power indicator remains always on).

  I tried suspending using the GUI, pressing the power button, closing
  the lid, and even through the terminal with the "pm-suspend" command.
  Nothing worked.

  Suspend worked fine on Ubuntu 15.10 and older releases, but since I
  upgraded to 16.04 I'm unable to put it to sleep.  In fact,  I had an
  old 4.2 kernel installed from Wily. I booted into it and it suspended
  and then resumed flawlessly, so it really seems to be a kernel related
  bug.

  I'll gladly perform any testing procedures that you may need to try to
  identify what the problem may be.

  I really hope that you are able to fix this soon, even if it will
  probably after the final release.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-18-generic 4.4.0-18.34
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Uname: Linux 4.4.0-18-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  pedro      2579 F.... pulseaudio
  CurrentDesktop: GNOME
  Date: Fri Apr 15 12:39:05 2016
  HibernationDevice: RESUME=UUID=761da9d5-d078-4fb5-a4fc-eff7de723b18
  InstallationDate: Installed on 2015-10-27 (170 days ago)
  InstallationMedia: Ubuntu-GNOME 15.10 "Wily Werewolf" - Release amd64 (20151021)
  MachineType: SAMSUNG ELECTRONICS CO., LTD. 870Z5E/880Z5E/680Z5E
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-18-generic.efi.signed root=UUID=8d1874c5-ce9f-481e-8d2a-ce85da5cd7fe ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-18-generic N/A
   linux-backports-modules-4.4.0-18-generic  N/A
   linux-firmware                            1.157
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-04-09 (5 days ago)
  dmi.bios.date: 04/21/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P05ADH.017.140421.SH
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: NP870Z5E-X01PT
  dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.board.version: SEC_SW_REVISION_1234567890ABCD
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP05ADH.017.140421.SH:bd04/21/2014:svnSAMSUNGELECTRONICSCO.,LTD.:pn870Z5E/880Z5E/680Z5E:pvrP05ADH:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP870Z5E-X01PT:rvrSEC_SW_REVISION_1234567890ABCD:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvrN/A:
  dmi.product.name: 870Z5E/880Z5E/680Z5E
  dmi.product.version: P05ADH
  dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.

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