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[Patrik Bubák <1468664@xxxxxxxxxxxxxxxxxx>]

Björn, I cannot do any such debugging, because the moment I open any
part of the Libreoffice suite the system completely crashes. This
happens only with Libreoffice, no other program.

Christopher, I have tried to update my BIOS, but I am not running a copy
of Windows on this machine and when I turned to Lenovo they just said I
should install Windows. I opened up this thread at Lenovo's official
boards https://forums.lenovo.com/t5/Linux-Discussion/Ubuntu-14-04-2
-BIOS-update-for-G50-45/td-p/2083148 asking for guidance on how to
update my BIOS safely, writing down exactly what I've tried and without
success, as the BIOS update for my laptop doesn't come with a flashing
utility, just a standalone .exe file that cannot be run from a Live
Session of FreeDos.

There is no Linux tool to help me with the upgrade and as we all know
flashing BIOS is risky, especially if there is no specific tool. I have
asked also via AskUbuntu if flashing via Windows 7 LiveCD would work, to
this day I haven't received a response.

If there is a safe and easy to do method of upgrading my BIOS I will
gladly do it, because currently I can't enable virtualization among
other things.

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1468664

Title:
  Libreoffice crashing the whole session in 15.04

Status in xorg package in Ubuntu:
  Incomplete

Bug description:
  [Impact]

  I've looked around but couldn't find any bug post related to this
  issue, so I'm posting a new.

  Libreoffice is known to crash the entire session on certain AMD
  configurations, mine happens to be one of them.

  AMD A6-6310 APU w/ AMD Radeon R4 and R5 M230 graphics.

  Libreoffice worked perfect on 14.04.2 last time I checked, on 15.04
  it's unusable due to the crash.

  Whenever it happens I get:

  starting version 219
  [drm:radeon_acpi_init [radeon]] *ERROR* cannot find a backlight controller

  and the whole session crashes.

  [Test case]

  I've tried also other distributions and kernels. Kernel 3.18 on
  Manjaro Xfce seems to be unaffected. Previous versions on Ubuntu as
  well.

  Kernel 3.19.*+ on Ubuntu and Fedora are also affected. Antergos didn't
  even boot from the LiveCD because of this.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: xorg 1:7.7+7ubuntu4
  ProcVersionSignature: Ubuntu 3.19.0-21.21-generic 3.19.8
  Uname: Linux 3.19.0-21-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1.1
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: None
  CurrentDesktop: GNOME
  Date: Thu Jun 25 10:26:14 2015
  DistUpgraded: Fresh install
  DistroCodename: vivid
  DistroVariant: ubuntu
  ExtraDebuggingInterest: No
  GraphicsCard:
   Advanced Micro Devices, Inc. [AMD/ATI] Mullins [Radeon R4/R5 Graphics] [1002:9851] (prog-if 00 [VGA controller])
     Subsystem: Lenovo Device [17aa:381a]
  InstallationDate: Installed on 2015-06-20 (4 days ago)
  InstallationMedia: Ubuntu-GNOME 15.04 "Vivid Vervet" - Release amd64 (20150422)
  MachineType: LENOVO 80E3
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-21-generic root=UUID=db4352a7-efc2-4393-bfe9-7804d7eb71fc ro quiet splash vt.handoff=7
  SourcePackage: xorg
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/08/2014
  dmi.bios.vendor: LENOVO
  dmi.bios.version: A2CN23WW(V1.05)
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: Lancer 5B2
  dmi.board.vendor: LENOVO
  dmi.board.version: 31900058 STD
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Lenovo G50-45
  dmi.modalias: dmi:bvnLENOVO:bvrA2CN23WW(V1.05):bd07/08/2014:svnLENOVO:pn80E3:pvrLenovoG50-45:rvnLENOVO:rnLancer5B2:rvr31900058STD:cvnLENOVO:ct10:cvrLenovoG50-45:
  dmi.product.name: 80E3
  dmi.product.version: Lenovo G50-45
  dmi.sys.vendor: LENOVO
  version.compiz: compiz N/A
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.60-2
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.5.2-0ubuntu1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.2-0ubuntu1
  version.xserver-xorg-core: xserver-xorg-core 2:1.17.1-0ubuntu3
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0-1ubuntu2
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2.2
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2build1
  xserver.bootTime: Sun Jun 21 09:24:57 2015
  xserver.configfile: default
  xserver.errors: RADEON(G0): [XvMC] Failed to initialize extension.
  xserver.logfile: /var/log/Xorg.0.log
  xserver.version: 2:1.17.1-0ubuntu3
  xserver.video_driver: radeon

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