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[Bug 1468788] Re: Kernel panic on suspend/shutdown


I seem to have the same problem also on a Dell XPS 13 (2015) but with
A03 BIOS. Currently running Kubuntu 15.04, Kernel 3.19.0-24-generic.
Only I have the kernel panic 100% of the time when suspending from KDE
either by closing the lid or from the KDE menu.

But I've found a tempory workaround. I've made a program starter with
the following command line:

qdbus org.freedesktop.ScreenSaver /ScreenSaver Lock ; sudo pm-suspend

and put the following file into /etc/sudoers.d:
mb@rhea:~$ cat /etc/sudoers.d/pm-suspend 
Cmnd_Alias SUSPEND = /usr/sbin/pm-suspend


This locks the screen and goes into suspend flawlessly. So it must be
something about the way KDE does suspend.

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  Kernel panic on suspend/shutdown

Status in linux package in Ubuntu:

Bug description:
  On (so far) spontaneous suspends (to RAM) or shutdowns, a kernel panic
  (blinking caps lock) will happen in roughly a third of the cases
  (felt, not measured). So far this has not happened when suspending
  manually through plasma.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: linux-image-3.19.0-21-generic 3.19.0-21.21
  ProcVersionSignature: Ubuntu 3.19.0-21.21-generic 3.19.8
  Uname: Linux 3.19.0-21-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.17.2-0ubuntu1.1
  Architecture: amd64
   /dev/snd/controlC1:  alex       1604 F.... pulseaudio
   /dev/snd/controlC0:  alex       1604 F.... pulseaudio
  CurrentDesktop: KDE
  Date: Thu Jun 25 16:50:43 2015
  HibernationDevice: RESUME=UUID=4487b3ba-9f46-4a25-9afd-0763b18028d3
  InstallationDate: Installed on 2015-06-01 (24 days ago)
  InstallationMedia: Kubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  MachineType: Dell Inc. XPS 13 9343
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-21-generic.efi.signed root=UUID=73890e89-f87d-4854-923c-bcf888dd69a4 ro quiet splash vt.handoff=7
   linux-restricted-modules-3.19.0-21-generic N/A
   linux-backports-modules-3.19.0-21-generic  N/A
   linux-firmware                             1.143.1
  SourcePackage: linux
  UdevLog: Error: [Errno 2] Datei oder Verzeichnis nicht gefunden: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 05/15/2015
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A04
  dmi.board.name: 0310JH
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA04:bd05/15/2015:svnDellInc.:pnXPS139343:pvr01:rvnDellInc.:rn0310JH:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9343
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.

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