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[Bug 1429489] Re: Suspend not working when closing lid on ThinkPad T420s

 

** Tags added: regression-release vivid

** Changed in: linux (Ubuntu)
   Importance: Undecided => Low

** Description changed:

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

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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.

  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

  WORKAROUND: 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

  WORKAROUND: Manually suspend.

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References