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[Hairong Zhu <1516572@xxxxxxxxxxxxxxxxxx>]

This is weird. I can successfully hibernate and resume sometimes.
Sometimes my computer's speaker(speaker on my mobo or case, I don't
know) beeps during boot, it might even keep beeping after I log into
Xubuntu. If it beeps during boot, I can successfully hibernate and then
later resume. It also beeps during the resume process. If it doesn't
beep during boot then I can not hibernate.

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https://bugs.launchpad.net/bugs/1516572

Title:
  Xubuntu 16.04 fails to hibernate

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Xubuntu 16.04(15, Nov daily build) fails to hibernate. Tried both
  swsusp and uswsusp. It hangs at snapshotting system stage. I can
  successfully hibernate the same computer in Xubuntu 14.04(kernel
  3.13/16/19 and mainline 4.2.3), the only difference is the two OSes
  are installed on two different hard drives, 14.04 uses ext4 as / and
  16.04 uses btrfs as /, if all that matters.

  Please let me know if I need to provide more info.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.2.0-19-generic 4.2.0-19.23 [modified: boot/vmlinuz-4.2.0-19-generic]
  ProcVersionSignature: Ubuntu 4.2.0-19.23-generic 4.2.6
  Uname: Linux 4.2.0-19-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.19.2-0ubuntu6
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  h          1402 F.... pulseaudio
   /dev/snd/controlC0:  h          1402 F.... pulseaudio
  CurrentDesktop: XFCE
  Date: Mon Nov 16 18:47:23 2015
  HibernationDevice: RESUME=UUID=2c6f975f-6269-4b2e-81f5-d8292dc8a550
  InstallationDate: Installed on 2015-11-16 (0 days ago)
  InstallationMedia: Xubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151115)
  MachineType: Gigabyte Technology Co., Ltd. B85M-D3V-A
  ProcFB: 0 VESA VGA
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-19-generic root=UUID=bdc72758-d8e5-4d09-b51e-beed1af77c48 ro rootflags=subvol=@ enable_mtrr_cleanup=1 resume=UUID=2c6f975f-6269-4b2e-81f5-d8292dc8a550
  RelatedPackageVersions:
   linux-restricted-modules-4.2.0-19-generic N/A
   linux-backports-modules-4.2.0-19-generic  N/A
   linux-firmware                            1.152
  RfKill:
   0: phy0: Wireless LAN
   	Soft blocked: no
   	Hard blocked: no
  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: 02/12/2015
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: F2
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: B85M-D3V-A
  dmi.board.vendor: Gigabyte Technology Co., Ltd.
  dmi.board.version: x.x
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF2:bd02/12/2015:svnGigabyteTechnologyCo.,Ltd.:pnB85M-D3V-A:pvrTobefilledbyO.E.M.:rvnGigabyteTechnologyCo.,Ltd.:rnB85M-D3V-A:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.name: B85M-D3V-A
  dmi.product.version: To be filled by O.E.M.
  dmi.sys.vendor: Gigabyte Technology Co., Ltd.

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