kernel-packages team mailing list archive

["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

Pirouette Cacahuète, the next step is to fully commit bisect from kernel
3.16 to 3.19 in order to identify the last good kernel commit, followed
immediately by the first bad one. This will allow for a more expedited
analysis of the root cause of your issue. Could you please do this
following https://wiki.ubuntu.com/Kernel/KernelBisection ?

Please note, finding adjacent kernel versions is not fully commit
bisecting.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

** Tags added: kernel-bug-exists-upstream-4.0-rc2 needs-bisect

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https://bugs.launchpad.net/bugs/1429489

Title:
  Suspend not working when closing lid on ThinkPad T420s

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Suspend doesn't work when closing the lid on my ThinkPad T420s. There
  is no issue with 14.10 or 14.04. Kernel 4.0 do not help.

  dmesg when closing/opening with kernel "Linux alex-ThinkPad-T420s 3.19.0-7-generic #7-Ubuntu SMP Thu Feb 26 20:19:34 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux":
  [ 94.842668] systemd-logind[1262]: Lid closed.
  [ 102.468204] systemd-logind[1262]: Lid opened.
  [ 102.468661] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment
  [ 124.075694] systemd-logind[1262]: Removed session c1.

  The i915 seems to be unrelated: it appears after the lid is opened
  again, and "pci=noacpi" makes it disappear but the bug stays.

  I managed to got it to work, after playing with the e1000e driver as suggested on https://bbs.archlinux.org/viewtopic.php?pid=1414261#p1414261, but with a dubious and inconsistent state:
   - doing nothing, e1000e loaded, it never goes to suspend when I close the lid (tried 5 times)
   - removing e1000e, goes to suspend when I close the lid
   - doing nothing, e1000e removed, it again cannot go to suspend when I close the lid
   - loading e1000e, goes to suspend when I close the lid

  WORKAROUND: Manually suspend.
  ---
  ApportVersion: 2.16.2-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  alex       1914 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 15.04
  InstallationDate: Installed on 2015-03-07 (0 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  MachineType: LENOVO 4171CTO
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-7-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.19.0-7.7-generic 3.19.0
  Tags:  vivid
  Uname: Linux 3.19.0-7-generic x86_64
  UpgradeStatus: Upgraded to vivid on 2015-03-07 (0 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 07/18/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 8CET58WW (1.38 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 4171CTO
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvr8CET58WW(1.38):bd07/18/2013:svnLENOVO:pn4171CTO:pvrThinkPadT420s:rvnLENOVO:rn4171CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 4171CTO
  dmi.product.version: ThinkPad T420s
  dmi.sys.vendor: LENOVO

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