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[Andreas Steffan <1259850@xxxxxxxxxxxxxxxxxx>]

apport information

** Attachment added: "BootDmesg.txt"
   https://bugs.launchpad.net/bugs/1259850/+attachment/3927466/+files/BootDmesg.txt

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Title:
  KDE powermanagement crashes kernel

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  I have a Dell Latitude D6510 running (K)ubuntu 13.10 with the current
  kernel (3.11.0-14). In KDE when I pull the power cord, the system
  instantly freezes - completely, leaving no helpful traces of the cause
  in syslog or pm-powersave.log.

  It does not happen w/o a running KDE session or when I switch to Unity
  or XFCE. Hence, I suspect KDE triggering the bug.

  Googling for "power unplug crash linux kernel" yields a bunch of somewhat similiar issues, but those all seem slightly diffrent from what I see. In fact, I have had the/an "unplug crash issue" before like a year or so ago. Somehow it vanished, and now it is back again, so this could be a kernel regression.
  --- 
  ApportVersion: 2.12.5-0ubuntu2.1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  deas       6090 F.... pulseaudio
  DistroRelease: Ubuntu 13.10
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=901a5939-36e9-4493-9f9d-68a6fea3613e
  InstallationDate: Installed on 2011-03-07 (1009 days ago)
  InstallationMedia: Kubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101008)
  MachineType: Dell Inc. Latitude E6510
  MarkForUpload: True
  Package: linux 3.11.0.14.15
  PackageArchitecture: amd64
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.11.0-14-generic root=/dev/mapper/hostname-root ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.11.0-14.21-generic 3.11.7
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-14-generic N/A
   linux-backports-modules-3.11.0-14-generic  N/A
   linux-firmware                             1.116
  Tags:  saucy
  Uname: Linux 3.11.0-14-generic x86_64
  UpgradeStatus: Upgraded to saucy on 2013-10-17 (54 days ago)
  UserGroups: adm admin cdrom dialout libvirtd lp lpadmin plugdev sambashare vboxusers
  dmi.bios.date: 05/09/2012
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A12
  dmi.board.name: 02K3Y4
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A02
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA12:bd05/09/2012:svnDellInc.:pnLatitudeE6510:pvr0001:rvnDellInc.:rn02K3Y4:rvrA02:cvnDellInc.:ct9:cvr:
  dmi.product.name: Latitude E6510
  dmi.product.version: 0001
  dmi.sys.vendor: Dell Inc.

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