double mouse cursor

[Pedro]

(I update the Bios but the bug persist.
$ sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
A09
06/29/2012)

These posts describe my problem:
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1393169
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1396361
But in my case, only when using multiple monitors it happens. I use one monitor rotated and one not. Like: https://bugs.freedesktop.org/show_bug.cgi?id=81886

The only way I've found to remove the extra mouse cursor is to drag an image in Chrome (?). It doesn't work with an image in Firefox nor in another program.
Anyway, the extra mouse coursor appears again at any time, so I have no solution for this.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xorg 1:7.7+1ubuntu8.1
ProcVersionSignature: Ubuntu 3.16.0-33.44~14.04.1-generic 3.16.7-ckt7
Uname: Linux 3.16.0-33-generic x86_64
.tmp.unity.support.test.0:

ApportVersion: 2.14.1-0ubuntu3.8
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity
Date: Thu Apr 9 13:53:03 2015
DistUpgraded: Fresh install
DistroCodename: trusty
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
 Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: Dell Device [1028:0552]
 NVIDIA Corporation GK107M [GeForce GT 650M] [10de:0fd1] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: Dell Device [1028:0552]
InstallationDate: Installed on 2015-03-21 (18 days ago)
InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
MachineType: Alienware M14xR2
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.16.0-33-generic root=UUID=2c30fb16-00b6-47fa-b592-c1f1a4fc163c ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/07/2012
dmi.bios.vendor: Alienware
dmi.bios.version: A03
dmi.board.name: M14xR2
dmi.board.vendor: Alienware
dmi.board.version: A03
dmi.chassis.type: 8
dmi.chassis.vendor: Alienware
dmi.chassis.version: A03
dmi.modalias: dmi:bvnAlienware:bvrA03:bd03/07/2012:svnAlienware:pnM14xR2:pvrA03:rvnAlienware:rnM14xR2:rvrA03:cvnAlienware:ct8:cvrA03:
dmi.product.name: M14xR2
dmi.product.version: A03
dmi.sys.vendor: Alienware
version.compiz: compiz 1:0.9.11.3+14.04.20150122-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.56-1~ubuntu2
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: Thu Apr 9 11:48:50 2015
xserver.configfile: default
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:

xserver.version: 2:1.16.0-1ubuntu1.2~trusty2

[Pedro (tueropedro)]

I update the Bios but the bug persist.
$ sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
A09
06/29/2012