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[Chris <cbaier@xxxxxxxxxxxxx>]

I agree, the entire interface freezes and I can not seem to give any
keyboard or mouse input without restarting.

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https://bugs.launchpad.net/bugs/1385889

Title:
  Graphical interface freezes.

Status in “xorg” package in Ubuntu:
  Confirmed

Bug description:
  Graphical interface freezes some time after switching from Intel Gpu
  to the discrete graphics card Nvidia GeForce 720M.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: xorg 1:7.7+7ubuntu2
  ProcVersionSignature: Ubuntu 3.16.0-23.31-generic 3.16.4
  Uname: Linux 3.16.0-23-generic x86_64
  NonfreeKernelModules: nvidia
  .proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0'
  .proc.driver.nvidia.registry: Binary: ""
  .proc.driver.nvidia.version:
   NVRM version: NVIDIA UNIX x86_64 Kernel Module  331.89  Tue Jul  1 13:30:18 PDT 2014
   GCC version:  gcc version 4.9.1 (Ubuntu 4.9.1-16ubuntu6)
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  Date: Sun Oct 26 17:05:04 2014
  DistUpgraded: Fresh install
  DistroCodename: utopic
  DistroVariant: ubuntu
  DkmsStatus:
   bbswitch, 0.7, 3.16.0-23-generic, x86_64: installed
   nvidia-331-updates, 331.89, 3.16.0-23-generic, x86_64: installed
   nvidia-331-updates-uvm, 331.89, 3.16.0-23-generic, x86_64: installed
   virtualbox, 4.3.18, 3.16.0-23-generic, x86_64: installed
  EcryptfsInUse: Yes
  GraphicsCard:
   Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: ASUSTeK Computer Inc. Device [1043:124d]
     Subsystem: ASUSTeK Computer Inc. Device [1043:124d]
  InstallationDate: Installed on 2014-10-23 (2 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  MachineType: ASUSTeK COMPUTER INC. X550CC
  ProcEnviron:
   SHELL=/bin/bash
   TERM=linux
   PATH=(custom, no user)
   LANG=ru_RU.UTF-8
   XDG_RUNTIME_DIR=<set>
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-23-generic.efi.signed root=UUID=92b225c1-0807-4944-8b18-4a5672bebec2 ro quiet splash vt.handoff=7
  SourcePackage: xorg
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/24/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: X550CC.300
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: X550CC
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX550CC.300:bd03/24/2014:svnASUSTeKCOMPUTERINC.:pnX550CC:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX550CC:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: X550CC
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.
  version.compiz: compiz 1:0.9.12+14.10.20140918-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.56-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.3.0-0ubuntu3
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.3.0-0ubuntu3
  version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
  version.xserver-xorg-core: xserver-xorg-core 2:1.16.0-1ubuntu1
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.4.0-2ubuntu2
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.914-1~exp1ubuntu4
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2
  xserver.bootTime: Sun Oct 26 16:51:54 2014
  xserver.configfile: /etc/X11/xorg.conf
  xserver.errors:
   NVIDIA(0): Failed to initiate mode change.
   NVIDIA(0): Failed to complete mode change
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                                 987 
   vendor                                     LGD
  xserver.version: 2:1.16.0-1ubuntu1

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