Public bug reported:

My lenovo thinmkpad Carbon X1 did not reboot after suspend. It always
stayed in the led intermittent. Some information about:

Error in /var/log/pm-suspend  
Running hook /usr/lib/pm-utils/sleep.d/60_wpa_supplicant suspend suspend:
Failed to connect to non-global ctrl_ifname: (nil)  error: No such file or 
directory
/usr/lib/pm-utils/sleep.d/60_wpa_supplicant suspend suspend: success.

Error in /var/log/pm-powersave.log
Running hook /usr/lib/pm-utils/power.d/pcie_aspm false:
sh: echo: I/O error
/usr/lib/pm-utils/power.d/pcie_aspm false: success.

ProblemType: KernelOops
DistroRelease: Ubuntu 18.04
Package: linux-image-4.13.0-32-generic 4.13.0-32.35
ProcVersionSignature: Ubuntu 4.13.0-32.35-generic 4.13.13
Uname: Linux 4.13.0-32-generic x86_64
Annotation: This occurred during a previous suspend, and prevented the system 
from resuming properly.
ApportVersion: 2.20.8-0ubuntu10
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC1:  gdm        1091 F.... pulseaudio
                      marcos     1505 F.... pulseaudio
 /dev/snd/controlC0:  gdm        1091 F.... pulseaudio
                      marcos     1505 F.... pulseaudio
Date: Thu Feb 15 18:42:17 2018
DuplicateSignature: suspend/resume:LENOVO 20A8S0UU00:GRET32WW (1.09 )
ExecutablePath: /usr/share/apport/apportcheckresume
Failure: suspend/resume
HibernationDevice: RESUME=UUID=fc8e6022-be7a-46fa-bf16-7f01ff4f07e6
InstallationDate: Installed on 2018-02-01 (14 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180129)
InterpreterPath: /usr/bin/python3.6
MachineType: LENOVO 20A8S0UU00
ProcCmdline: /usr/bin/python3 /usr/share/apport/apportcheckresume
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.13.0-32-generic 
root=UUID=864f7255-7e0e-4960-850a-8c64143a61ff ro quiet splash vt.handoff=1
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No 
PulseAudio daemon running, or not running as session daemon.
Python3Details: /usr/bin/python3.6, Python 3.6.4, python3-minimal, 3.6.4-1
PythonDetails: /usr/bin/python2.7, Python 2.7.14+, python-minimal, 2.7.14-4
RelatedPackageVersions:
 linux-restricted-modules-4.13.0-32-generic N/A
 linux-backports-modules-4.13.0-32-generic  N/A
 linux-firmware                             1.170
SourcePackage: linux
Title: [LENOVO 20A8S0UU00] suspend/resume failure
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:
 
dmi.bios.date: 02/13/2014
dmi.bios.vendor: LENOVO
dmi.bios.version: GRET32WW (1.09 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20A8S0UU00
dmi.board.vendor: LENOVO
dmi.board.version: SDK0E50510 Pro
dmi.chassis.asset.tag: CS0000064994
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: 
dmi:bvnLENOVO:bvrGRET32WW(1.09):bd02/13/2014:svnLENOVO:pn20A8S0UU00:pvrThinkPadX1Carbon2nd:rvnLENOVO:rn20A8S0UU00:rvrSDK0E50510Pro:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.family: ThinkPad X1 Carbon 2nd
dmi.product.name: 20A8S0UU00
dmi.product.version: ThinkPad X1 Carbon 2nd
dmi.sys.vendor: LENOVO

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Confirmed


** Tags: amd64 apport-kerneloops bionic resume suspend

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https://bugs.launchpad.net/bugs/1749815

Title:
  [LENOVO 20A8S0UU00] suspend/resume failure

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