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[James Tait <1441643@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

This has happened several times in the last few weeks, including twice
yesterday. There is no obvious user action that triggers the crash: the
first crash yesterday, I was composing an e-mail in the GMail pop-out
editor; the second I was editing a config file on a remote server via
SSH; previously, the crash has happened while I've been just reading
something on the screen, not interacting with the computer at all.

The symptoms are a non-responsive display, with the exception of the
mouse pointer. I'm not even able to switch to a different vt -  just get
a black screen. However, I *am* able to SSH into the machine, and when I
did so yesterday I tried:

 * killing compiz
 * restarting the unity7 upstart job (my windows flashed briefly on the screen, then I got the login background)
 * restarting lightdm

The latter action got me to a login prompt, where I was able to login
and start a standard desktop session and, thankfully, resume my screen
and tmux sessions and not lose any work.

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: lightdm 1.12.3-0ubuntu1
ProcVersionSignature: Ubuntu 3.16.0-30.40-generic 3.16.7-ckt3
Uname: Linux 3.16.0-30-generic x86_64
ApportVersion: 2.14.7-0ubuntu8.2
Architecture: amd64
CurrentDesktop: Unity
Date: Wed Apr  8 14:55:47 2015
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-07-04 (277 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
SourcePackage: lightdm
UpgradeStatus: Upgraded to utopic on 2015-01-31 (66 days ago)

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


** Tags: amd64 apport-bug third-party-packages utopic

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Packages, which is subscribed to lightdm in Ubuntu.
https://bugs.launchpad.net/bugs/1441643

Title:
  lightdm crashes during normal operation with no obvious cause

Status in lightdm package in Ubuntu:
  New

Bug description:
  This has happened several times in the last few weeks, including twice
  yesterday. There is no obvious user action that triggers the crash:
  the first crash yesterday, I was composing an e-mail in the GMail pop-
  out editor; the second I was editing a config file on a remote server
  via SSH; previously, the crash has happened while I've been just
  reading something on the screen, not interacting with the computer at
  all.

  The symptoms are a non-responsive display, with the exception of the
  mouse pointer. I'm not even able to switch to a different vt -  just
  get a black screen. However, I *am* able to SSH into the machine, and
  when I did so yesterday I tried:

   * killing compiz
   * restarting the unity7 upstart job (my windows flashed briefly on the screen, then I got the login background)
   * restarting lightdm

  The latter action got me to a login prompt, where I was able to login
  and start a standard desktop session and, thankfully, resume my screen
  and tmux sessions and not lose any work.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: lightdm 1.12.3-0ubuntu1
  ProcVersionSignature: Ubuntu 3.16.0-30.40-generic 3.16.7-ckt3
  Uname: Linux 3.16.0-30-generic x86_64
  ApportVersion: 2.14.7-0ubuntu8.2
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Wed Apr  8 14:55:47 2015
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2014-07-04 (277 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  SourcePackage: lightdm
  UpgradeStatus: Upgraded to utopic on 2015-01-31 (66 days ago)

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