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[Johann Götz <johnny.goetz.0@xxxxxxxxx>]

I have the same problem, while suspend works with kernel 4.4.0-10 it
stopped working with kernel 4.4.0-12 (don't know about *-11).

Below are the last log messages before machine suspended:

Mär 14 20:54:23 moebius wpa_supplicant[888]: p2p-dev-wlo1: CTRL-EVENT-REGDOM-CHANGE init=CORE type=WORLD
Mär 14 20:54:23 moebius dbus[699]: [system] Rejected send message, 10 matched rules; type="method_return", sender=":1.92" (uid=0 pid=1533 comm="/usr/sbin/dnsmasq --no-resolv --keep-in-foreground") i
Mär 14 20:54:23 moebius NetworkManager[623]: <info>  NetworkManager state is now ASLEEP
Mär 14 20:54:23 moebius whoopsie[649]: [20:54:23] Cannot reach: https://daisy.ubuntu.com
Mär 14 20:54:23 moebius wpa_supplicant[888]: nl80211: deinit ifname=p2p-dev-wlo1 disabled_11b_rates=0
Mär 14 20:54:23 moebius NetworkManager[623]: <warn>  Failed to GDBus.Error:fi.w1.wpa_supplicant1.NotConnected: This interface is not connected: disconnect.
Mär 14 20:54:23 moebius dbus[699]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service'
Mär 14 20:54:23 moebius systemd[1]: Reached target Sleep.
Mär 14 20:54:23 moebius systemd[1]: Starting Suspend...
Mär 14 20:54:23 moebius systemd[1]: Starting Network Manager Script Dispatcher Service...
Mär 14 20:54:23 moebius dbus[699]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Mär 14 20:54:23 moebius systemd[1]: Started Network Manager Script Dispatcher Service.
Mär 14 20:54:23 moebius nm-dispatcher[1910]: Dispatching action 'down' for wlo1
Mär 14 20:54:23 moebius wpa_supplicant[888]: nl80211: deinit ifname=wlo1 disabled_11b_rates=0
Mär 14 20:54:25 moebius bluetoothd[655]: Endpoint unregistered: sender=:1.56 path=/MediaEndpoint/A2DPSource
Mär 14 20:54:25 moebius bluetoothd[655]: Endpoint unregistered: sender=:1.56 path=/MediaEndpoint/A2DPSink
Mär 14 20:54:27 moebius org.gnome.zeitgeist.Engine[1243]: ** (zeitgeist-datahub:1958): WARNING **: zeitgeist-datahub.vala:229: Unable to get name "org.gnome.zeitgeist.datahub" on the bus!
Mär 14 20:54:27 moebius gnome-session[1359]: ** (zeitgeist-datahub:1936): WARNING **: kde-recent-document-provider.vala:174: Couldn't find actor for 'okular'.
Mär 14 20:54:33 moebius systemd-sleep[1908]: Selected interface 'wlo1'
Mär 14 20:54:33 moebius systemd-sleep[1908]: 'SUSPEND' command timed out.
Mär 14 20:54:33 moebius systemd-sleep[1912]: /lib/systemd/system-sleep/wpasupplicant failed with error code 254.
Mär 14 20:54:33 moebius systemd-sleep[1908]: Suspending system...

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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1543788

Title:
  Fails to resume from suspend

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Resuming from suspend used to work previously in 16.04.

  On resume I see a blank screen and nothing seems to respond. I've
  tried Ctrl+Alt+F1 and then Ctrl+Alt+Delete. Also tried the power
  button. No response.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-2-generic 4.4.0-2.16
  ProcVersionSignature: Ubuntu 4.4.0-2.16-generic 4.4.0
  Uname: Linux 4.4.0-2-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  shahar     2292 F.... pulseaudio
   /dev/snd/controlC0:  shahar     2292 F.... pulseaudio
   /dev/snd/controlC2:  shahar     2292 F.... pulseaudio
  CurrentDesktop: XFCE
  Date: Tue Feb  9 22:51:40 2016
  HibernationDevice: RESUME=UUID=f2bd5594-8447-422c-a345-492ede4de1d9
  InstallationDate: Installed on 2010-10-12 (1946 days ago)
  InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
  IwConfig:
   eth0      no wireless extensions.
   
   eth1      no wireless extensions.
   
   lo        no wireless extensions.
  MachineType: Supermicro X10SRA
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-2-generic root=/dev/mapper/root ro nomdmonddf nomdmonisw
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-2-generic N/A
   linux-backports-modules-4.4.0-2-generic  N/A
   linux-firmware                           1.155
  RfKill:
   
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2015-11-13 (88 days ago)
  dmi.bios.date: 11/27/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 1.0a
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: X10SRA
  dmi.board.vendor: Supermicro
  dmi.board.version: 1.01
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 17
  dmi.chassis.vendor: Supermicro
  dmi.chassis.version: 0123456789
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1.0a:bd11/27/2014:svnSupermicro:pnX10SRA:pvr0123456789:rvnSupermicro:rnX10SRA:rvr1.01:cvnSupermicro:ct17:cvr0123456789:
  dmi.product.name: X10SRA
  dmi.product.version: 0123456789
  dmi.sys.vendor: Supermicro

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