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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:

apport-collect 1429489

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

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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:
  As documented in bug 1427942: I do reproduce this on a ThinkPad T420s.
  Previous version installed (14.04) did work pretty well for this.

  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.

  Kernel 4.0 do not help.

  There is no issue with a 14.10 ; and upgrading 14.10 to 15.04 exposes
  the issue.

  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

  The current state is:
   - 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

  And of course, manually suspending does work.

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