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[Andreas Steffan <1259850@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

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.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: kernel-bug

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https://bugs.launchpad.net/bugs/1259850

Title:
  KDE powermanagement crashes kernel

Status in “linux” package in Ubuntu:
  New

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.

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