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[Bug 1463264] Re: When I lock ubuntu 14.04.2, all applications opened (complete session) crashed

 

I can confirm this bug on my:

Compaq C700
CPU: Intel Pentium Dual CPU T2310 @ 1.467GHz - 
GPU: Intel Mobile GM965/GL960
OS: Ubuntu 14.04 trusty
Kernel: i686 Linux 3.16.0-38-generic

I DO NOT have the problem on my:

Lenovo Thinkpad Edge E125
CPU: AMD E-450 APU with Radeo HD Graphics @ 1.65GHz
GPU AMD/ATI Wrestler [Radeon HD 6320]
OS: Ubuntu 14.04 trusty
Kernel: x86_64 Linux 3.13.0-54-generic

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https://bugs.launchpad.net/bugs/1463264

Title:
  When I lock ubuntu 14.04.2, all applications opened (complete session)
  crashed

Status in lightdm package in Ubuntu:
  Confirmed

Bug description:
  Freshly installed ubuntu 14.04.2 with full updates.

  When I lock my desktop session, desktop halts for a couple of seconds, then session is locked, but I am taken back to Login screen.
  When I login, than Lock is presented, and when I unlock by providing password, all my previous session is gone, all applications crashed/closed. Its like when I just logged in for the first time, but with a twist that even the applications that were setup to be opened on startup like Skype are not auto started after this issue happen.  [skype does autostart on normal login, as its added in startup applications list]

  I expect normal lock and unlock experience, not logout experience when
  locking.

  
  Using fglrx or X.Org open source display driver gives same issue.

  I am using HP ProBook 450 G2.

  Same issue was happening on 14.04.1. Same issue is happening on all of
  our same modal laptops, so for sure its a bug somewhere.

  Let me know if anyone needs more information or logs etc. I will try
  my best to provide these details.

  LIghtDM version is: 1.10.5-0ubuntu1

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: lightdm 1.10.5-0ubuntu1
  ProcVersionSignature: Ubuntu 3.16.0-38.52~14.04.1-generic 3.16.7-ckt10
  Uname: Linux 3.16.0-38-generic x86_64
  NonfreeKernelModules: fglrx
  ApportVersion: 2.14.1-0ubuntu3.11
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Tue Jun  9 10:29:39 2015
  SourcePackage: lightdm
  UpgradeStatus: No upgrade log present (probably fresh install)

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References