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[Bug 1577792] Re: video not working after resume


Do you have some time to test some kernels?  We can bisect down to the
commit that introduced this once we know the last good 4.4 kernel and
the first bad one.

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

** Tags added: kernel-da-key

** Also affects: linux (Ubuntu Xenial)
   Importance: Undecided
       Status: New

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

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

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  video not working after resume

Status in linux package in Ubuntu:
Status in linux source package in Xenial:

Bug description:
  I suspended my x250.  Then plugged it in (overnight).  Then unplugged
  it.  Then opened it.  It resumed, but video did not work.  I closed
  the lid and opened it, a few times.  No dice.  Then, I pressed the
  power button, and the video came back on.  I was sitting next to
  Leann, Chris, and Brad here at the CDO Sprint.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-21-generic 4.4.0-21.37
  ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
  Uname: Linux 4.4.0-21-generic x86_64
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
   /dev/snd/controlC0:  kirkland   4510 F.... pulseaudio
   /dev/snd/pcmC1D0p:   kirkland   4510 F...m pulseaudio
   /dev/snd/controlC1:  kirkland   4510 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Tue May  3 08:18:10 2016
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2015-05-15 (354 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  MachineType: LENOVO 20CMCTO1WW
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-21-generic root=UUID=a4d6a56a-7b1b-4a7c-8420-f2b8e6d15c37 ro quiet splash vt.handoff=7
   linux-restricted-modules-4.4.0-21-generic N/A
   linux-backports-modules-4.4.0-21-generic  N/A
   linux-firmware                            1.157
  SourcePackage: linux
  SystemImageInfo: Error: command ['system-image-cli', '-i'] failed with exit code 2:
  UpgradeStatus: Upgraded to xenial on 2016-01-04 (119 days ago)
  dmi.bios.date: 03/05/2015
  dmi.bios.vendor: LENOVO
  dmi.bios.version: N10ET30W (1.07 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20CMCTO1WW
  dmi.board.vendor: LENOVO
  dmi.board.version: 0B98417 PRO
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: dmi:bvnLENOVO:bvrN10ET30W(1.07):bd03/05/2015:svnLENOVO:pn20CMCTO1WW:pvrThinkpadX250:rvnLENOVO:rn20CMCTO1WW:rvr0B98417PRO:cvnLENOVO:ct10:cvrNone:
  dmi.product.name: 20CMCTO1WW
  dmi.product.version: Thinkpad X250
  dmi.sys.vendor: LENOVO

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