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[Vivian Stewart <1313902@xxxxxxxxxxxxxxxxxx>]

I am also effected by this bug.

bla@bla:~$ sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
[sudo] password for bla: 
X550LN.305
05/14/2014
bla@bla:~$ xinput --list
⎡ Virtual core pointer                    	id=2	[master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer              	id=4	[slave  pointer  (2)]
⎜   ↳ ETPS/2 Elantech Touchpad                	id=13	[slave  pointer  (2)]
⎣ Virtual core keyboard                   	id=3	[master keyboard (2)]
    ↳ Virtual core XTEST keyboard             	id=5	[slave  keyboard (3)]
    ↳ Power Button                            	id=6	[slave  keyboard (3)]
    ↳ Video Bus                               	id=7	[slave  keyboard (3)]
    ↳ Video Bus                               	id=8	[slave  keyboard (3)]
    ↳ Sleep Button                            	id=9	[slave  keyboard (3)]
    ↳ USB Camera                              	id=10	[slave  keyboard (3)]
    ↳ Asus WMI hotkeys                        	id=11	[slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard            	id=12	[slave  keyboard (3)]

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https://bugs.launchpad.net/bugs/1313902

Title:
  [Asus X550LB] screen freezes when pointer is moved with touchpad

Status in “xorg” package in Ubuntu:
  Expired

Bug description:
  on a freshly installed trusty (kubuntu) & asus x550lb notebook, nvidia geforce gt 740m, with an elantech touchpad, when moving  the pointer with touchpad, the screen suddenly freezes. additionally, when the problem occurs, the following message is logged to the syslog:
  acpid: client 11187[0:0] has disconnected

  switching to character mode and back after waiting a few seconds (ctrl+alt+f1, ctrl+alt_f7) makes the problem disappear and the i see in the syslog the following:
  acpid: client connected from 11187[0:0]
  acpid: 1 client rule loaded

  if i do something during the freeze (moving the pointer, clicking
  etc), it happens after the switchback.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: xorg 1:7.7+1ubuntu8
  ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
  Uname: Linux 3.13.0-24-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  331.38  Wed Jan  8 19:32:30 PST 2014
   GCC version:  gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1)
  ApportVersion: 2.14.1-0ubuntu3
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: kwin
  Date: Mon Apr 28 21:48:23 2014
  DistUpgraded: Fresh install
  DistroCodename: trusty
  DistroVariant: ubuntu
  DkmsStatus:
   bbswitch, 0.7, 3.13.0-24-generic, x86_64: installed
   nvidia-331, 331.38, 3.13.0-24-generic, x86_64: installed
   vboxhost, 4.3.10, 3.13.0-24-generic, x86_64: installed
  ExtraDebuggingInterest: I just need to know a workaround
  GraphicsCard:
   Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: ASUSTeK Computer Inc. Device [1043:131d]
     Subsystem: ASUSTeK Computer Inc. Device [1043:131d]
  InstallationDate: Installed on 2014-04-24 (4 days ago)
  InstallationMedia: Kubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.1)
  LightdmGreeterLog:
   QInotifyFileSystemWatcherEngine::addPaths: inotify_add_watch failed: No such file or directory
   QFileSystemWatcher: failed to add paths: /var/lib/lightdm/.config/ibus/bus
   Bus::open: Can not get ibus-daemon's address.
   IBusInputContext::createInputContext: no connection to ibus-daemon
   file:///usr/share/kde4/apps/lightdm-kde-greeter/themes/userbar/main.qml:135: Unable to assign [undefined] to QString usersession
  LightdmGreeterLogOld:
   QInotifyFileSystemWatcherEngine::addPaths: inotify_add_watch failed: No such file or directory
   QFileSystemWatcher: failed to add paths: /var/lib/lightdm/.config/ibus/bus
   Bus::open: Can not get ibus-daemon's address.
   IBusInputContext::createInputContext: no connection to ibus-daemon
   file:///usr/share/kde4/apps/lightdm-kde-greeter/themes/userbar/main.qml:135: Unable to assign [undefined] to QString usersession
  Lsusb:
   Bus 001 Device 002: ID 8087:8000 Intel Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 002 Device 002: ID 04f2:b40a Chicony Electronics Co., Ltd
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK COMPUTER INC. X550LB
  NvidiaBugReportLog:
   ERROR: Working directory is not writable; please cd to a directory
          where you have write permission so that the nvidia-bug-report.log.gz
          file can be written.
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-24-generic.efi.signed root=/dev/mapper/kubuntu--vg-root ro quiet splash vt.handoff=7
  SourcePackage: xorg
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/09/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: X550LB.210
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: X550LB
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: ATN12345678901234567
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX550LB.210:bd07/09/2013:svnASUSTeKCOMPUTERINC.:pnX550LB:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX550LB:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: X550LB
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.
  version.compiz: compiz N/A
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.52-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.0-4ubuntu5
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.0-4ubuntu5
  version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
  version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A
  xserver.bootTime: Mon Apr 28 20:13:39 2014
  xserver.configfile: /etc/X11/xorg.conf
  xserver.logfile: /var/log/Xorg.0.log
  xserver.version: 2:1.15.1-0ubuntu2

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