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[Bug 1591790] Re: Resume from suspend, lock screen causes gpu hang


James Ferguson, the next step is to fully reverse commit bisect from
kernel 4.4 to 4.7-rc3 in order to identify the last bad commit, followed
immediately by the first good one. Once this good commit has been
identified, it may be reviewed for backporting. Could you please do this

Please note, finding adjacent kernel versions is not fully commit

Also, the kernel release names are irrelevant for the purposes of

After the fix commit (not kernel version) has been identified, then
please mark this report Status Confirmed.

Thank you for your help.

** Tags added: bios-outdated-2.66

** Tags added: kernel-fixed-upstream-4.7-rc3 needs-reverse-bisect

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

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  Resume from suspend, lock screen causes gpu hang

Status in linux package in Ubuntu:

Bug description:
  Frequently, returning from suspend, the lock screen 'crashes'.  I
  typically enter my password, it freezes (sometimes shows me my
  desktop) and then I get the lock screen again, presumably it's
  respawned.  My syslog shows a kernel stack trace and "drm/i915:
  Resetting chip after gpu hang"

  Just before reporting this it happened twice before I got past the lockscreen to my desktop

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-24-generic 4.4.0-24.43
  ProcVersionSignature: Ubuntu 4.4.0-24.43-generic 4.4.10
  Uname: Linux 4.4.0-24-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
   /dev/snd/controlC0:  james      1988 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sun Jun 12 20:58:31 2016
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2016-05-21 (22 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
  MachineType: LENOVO 2325KZ5
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-24-generic root=UUID=72122534-7dd5-411b-9c56-c4844502e0ad ro quiet splash vt.handoff=7
   linux-restricted-modules-4.4.0-24-generic N/A
   linux-backports-modules-4.4.0-24-generic  N/A
   linux-firmware                            1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/05/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: G2ETA0WW (2.60 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 2325KZ5
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Defined
  dmi.chassis.asset.tag: 518896
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrG2ETA0WW(2.60):bd03/05/2013:svnLENOVO:pn2325KZ5:pvrThinkPadX230:rvnLENOVO:rn2325KZ5:rvrNotDefined:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 2325KZ5
  dmi.product.version: ThinkPad X230
  dmi.sys.vendor: LENOVO

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