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[Guiu <guiu@mateu.email>]

Hi Christopher,
No, there aren't a crash file in /var/crash after issue. Sorry :(
Also, no appeared any message in the display that infored that GNOME has crashed.

Thank you.

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https://bugs.launchpad.net/bugs/1551357

Title:
  Shell Gnome crash when primary display is HDMI and lock screen.

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Hi,

  I have the following issue:

  When the additional display (connected by HDMI) is the primary, after
  I blocked session the Gnome Shell is broken. I need restart Gnome
  Shell and apply display configuration for establish the initial
  configuration. When Gnome Shell is broked, the extension Panel-Docklet
  (v18) didn't work correctly.

  If I only use the laptop display, the issue doesn't appear.

  In the syslog I can see this issue recursively:

  [drm:gen8_irq_handler [i915_bpo]] *ERROR* The master control interrupt
  lied (SDE)!

  I'm not an linux expert and I don't know how I can see more logs. I
  can do screenshots and send it to you if it can help you.

  More system details:
  Toshiba Tecra

  Ubuntu:
    Distributor ID:	Ubuntu
    Description:	Ubuntu 14.04.4 LTS
    Release:	14.04
    Codename:	trusty

  Gnome:
    GNOME Shell 3.10.4

  Uname:
    Linux guiu-ubuntu 3.19.0-51-generic #58~14.04.1-Ubuntu SMP Fri Feb 26 22:02:58 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

  xrandr
    Screen 0: minimum 8 x 8, current 3520 x 1080, maximum 32767 x 32767
    eDP1 connected 1600x900+0+0 (normal left inverted right x axis y axis) 309mm x 174mm
       1600x900       60.0*+
       1440x900       59.9  
       1360x768       59.8     60.0  
       1152x864       60.0  
       1024x768       60.0  
       800x600        60.3     56.2  
       640x480        59.9  
    DP1 disconnected (normal left inverted right x axis y axis)
    DP2 disconnected (normal left inverted right x axis y axis)
    HDMI1 disconnected (normal left inverted right x axis y axis)
    HDMI2 connected primary 1920x1080+1600+0 (normal left inverted right x axis y axis) 477mm x 268mm
       1920x1080      60.0*+
       1600x900       60.0  
       1280x1024      75.0     60.0  
       1152x864       75.0  
       1024x768       75.1     60.0  
       800x600        75.0     60.3  
       640x480        75.0     60.0  
       720x400        70.1  
    VIRTUAL1 disconnected (normal left inverted right x axis y axis)
  --- 
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/pcmC1D0p:   guiu       2506 F...m pulseaudio
   /dev/snd/controlC1:  guiu       2506 F.... pulseaudio
   /dev/snd/controlC0:  guiu       2506 F.... pulseaudio
  CurrentDesktop: GNOME
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=92018923-030a-4ebd-8935-7e494bbbea03
  InstallationDate: Installed on 2016-02-01 (28 days ago)
  InstallationMedia: Ubuntu-GNOME 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
  MachineType: TOSHIBA TECRA Z40-B
  Package: linux (not installed)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=ca_ES.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-51-generic.efi.signed root=UUID=243e6795-b174-464f-802c-55e25e977312 ro quiet splash resume=/dev/sda6 vt.handoff=7
  ProcVersionSignature: Ubuntu 3.19.0-51.58~14.04.1-generic 3.19.8-ckt13
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-51-generic N/A
   linux-backports-modules-3.19.0-51-generic  N/A
   linux-firmware                             1.127.20
  Tags:  trusty
  Uname: Linux 3.19.0-51-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 06/26/2015
  dmi.bios.vendor: TOSHIBA
  dmi.bios.version: Version 3.40
  dmi.board.asset.tag: 0000000000
  dmi.board.name: TECRA Z40-B
  dmi.board.vendor: TOSHIBA
  dmi.board.version: Version A0
  dmi.chassis.asset.tag: 0000000000
  dmi.chassis.type: 10
  dmi.chassis.vendor: TOSHIBA
  dmi.chassis.version: Version 1.0
  dmi.modalias: dmi:bvnTOSHIBA:bvrVersion3.40:bd06/26/2015:svnTOSHIBA:pnTECRAZ40-B:pvrPT45FE-01Q010CE:rvnTOSHIBA:rnTECRAZ40-B:rvrVersionA0:cvnTOSHIBA:ct10:cvrVersion1.0:
  dmi.product.name: TECRA Z40-B
  dmi.product.version: PT45FE-01Q010CE
  dmi.sys.vendor: TOSHIBA

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