apport information

** Attachment added: "IwConfig.txt"
   
https://bugs.launchpad.net/bugs/1774771/+attachment/5147815/+files/IwConfig.txt

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https://bugs.launchpad.net/bugs/1774771

Title:
  Thinkpad T450s frequently hangs with black screen on resume

Status in linux package in Ubuntu:
  New

Bug description:
  My laptop, a Thinkpad T450s, often hangs with a black screen on resume
  from suspend; I have to power off and back on to recover.  I'd
  estimate that this happens perhaps one in every two or three resumes,
  so it's pretty annoying.

  I'm currently running 18.04, but was on 16.04 up to a few months ago.
  I suspend relatively infrequently so I don't have great data, but my
  sense is that this happened occasionally on 16.04 but has become very
  much more frequent on 18.04.

  I haven't been able to find any useful log information about what the
  problem might be: syslog has log entries for suspending and then goes
  straight into the log of the next successful boot, with nothing that I
  can see relevant to the failed resume.  I'm willing to dig given
  specific pointers, though.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: linux-image-4.15.0-22-generic 4.15.0-22.24
  ProcVersionSignature: Ubuntu 4.15.0-22.24-generic 4.15.17
  Uname: Linux 4.15.0-22-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.9-0ubuntu7.1
  Architecture: amd64
  CurrentDesktop: GNOME
  Date: Sat Jun  2 11:30:18 2018
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2013-03-01 (1918 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130223.1)
  SourcePackage: linux-signed
  UpgradeStatus: No upgrade log present (probably fresh install)
  --- 
  ApportVersion: 2.20.9-0ubuntu7.1
  Architecture: amd64
  CurrentDesktop: GNOME
  DistroRelease: Ubuntu 18.04
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=/dev/mapper/system-swap
  InstallationDate: Installed on 2013-03-01 (1918 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130223.1)
  MachineType: LENOVO 20BXCTO1WW
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-22-generic 
root=/dev/mapper/system-root ro quiet splash vt.handoff=1
  ProcVersionSignature: Ubuntu 4.15.0-22.24-generic 4.15.17
  RelatedPackageVersions:
   linux-restricted-modules-4.15.0-22-generic N/A
   linux-backports-modules-4.15.0-22-generic  N/A
   linux-firmware                             1.173.1
  Tags:  wayland-session bionic
  Uname: Linux 4.15.0-22-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip docker fuse kvm libvirt libvirtd lpadmin lxd mojo 
plugdev sambashare sbuild sudo uml-net
  _MarkForUpload: True
  dmi.bios.date: 12/14/2017
  dmi.bios.vendor: LENOVO
  dmi.bios.version: JBET67WW (1.31 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20BXCTO1WW
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0E50512 STD
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: 
dmi:bvnLENOVO:bvrJBET67WW(1.31):bd12/14/2017:svnLENOVO:pn20BXCTO1WW:pvrThinkPadT450s:rvnLENOVO:rn20BXCTO1WW:rvrSDK0E50512STD:cvnLENOVO:ct10:cvrNone:
  dmi.product.family: ThinkPad T450s
  dmi.product.name: 20BXCTO1WW
  dmi.product.version: ThinkPad T450s
  dmi.sys.vendor: LENOVO

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