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[Eric Layton <eric.layton@xxxxxxxx>]

Thanks for the response, and very clear instructions on how to upgrade
the BIOS under Linux.  It's much appreciated.

I upgraded the BIOS:

$ sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
1402
08/09/2012

The problem of a duplicate cursor getting stuck on the previous screen
is much less common now, but does still occur.  Especially when moving
the cursor from one screen to the other relatively quickly.

I should probably clarify that, like the original bug, this didn't
happen in Ubuntu 12.04.  I upgraded that to Ubuntu 14.04 and the problem
still wasn't there.  Then I wiped the machine and installed Kubuntu
14.04 directly, and the problem manifested itself.

Thanks for your continued help.

** Changed in: xorg (Ubuntu)
       Status: Incomplete => New

-- 
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/1490684

Title:
  Mouse cursor duplicated in dual screen setup

Status in xorg package in Ubuntu:
  New

Bug description:
  Duplicate of
  https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1071722 which was
  closed due to inactivity.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: xorg 1:7.7+1ubuntu8.1
  ProcVersionSignature: Ubuntu 3.16.0-46.62~14.04.1-generic 3.16.7-ckt15
  Uname: Linux 3.16.0-46-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.12
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: kwin
  CurrentDesktop: KDE
  Date: Mon Aug 31 12:57:59 2015
  DistUpgraded: Fresh install
  DistroCodename: trusty
  DistroVariant: kubuntu
  ExtraDebuggingInterest: No
  GraphicsCard:
   NVIDIA Corporation GF108 [GeForce GT 440] [10de:0de0] (rev a1) (prog-if 00 [VGA controller])
     Subsystem: eVga.com. Corp. Device [3842:1441]
  InstallationDate: Installed on 2015-08-26 (5 days ago)
  InstallationMedia: Kubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150219.1)
  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
  MachineType: System manufacturer System Product Name
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-46-generic root=UUID=006bd7c5-dbe8-45ce-b17a-87bd9a3de3ce ro quiet splash vt.handoff=7
  Renderer: Software
  SourcePackage: xorg
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/01/2011
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 0902
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: SABERTOOTH X58
  dmi.board.vendor: ASUSTeK Computer INC.
  dmi.board.version: Rev 1.xx
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0902:bd03/01/2011:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnSABERTOOTHX58:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer
  version.compiz: compiz N/A
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.60-2~ubuntu14.04.1
  version.libgl1-mesa-dri: libgl1-mesa-dri N/A
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx N/A
  version.xserver-xorg-core: xserver-xorg-core N/A
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
  version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
  version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A
  xserver.bootTime: Mon Aug 31 08:39:22 2015
  xserver.configfile: default
  xserver.devices:
   input        Power Button         KEYBOARD, id 6
   input        Power Button         KEYBOARD, id 7
   input        Microsoft Wired Keyboard 600 KEYBOARD, id 8
   input        Microsoft Wired Keyboard 600 KEYBOARD, id 9
   input        Microsoft  Microsoft Basic Optical Mouse v2.0  MOUSE, id 10
  xserver.errors:
   Failed to load module "nvidia" (module does not exist, 0)
   Failed to load module "nouveau" (module does not exist, 0)
   Failed to load module "nvidia" (module does not exist, 0)
   Failed to load module "nouveau" (module does not exist, 0)
   AIGLX: reverting to software rendering
  xserver.logfile: /var/log/Xorg.0.log
  xserver.version: 2:1.16.0-1ubuntu1.2~trusty2
  xserver.video_driver: modesetting

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