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[Данило Шеган <1467595@xxxxxxxxxxxxxxxxxx>]

I've also seen on my Fujitsu U904 (3200x1800) connected over DP to the
external 4k screen.  I've worked around it by using Ctrl to highlight
the cursor position until the cursor returns (sometimes it takes more
than a couple of hours, and the only sure way to get it back is to log
out and log back in — switching to terminal console or suspending and
resuming does not help).

Will attach more info once I hit it again.

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https://bugs.launchpad.net/bugs/1467595

Title:
  cursor sometimes disappears on XPS 13 9343 and external monitor

Status in Unity:
  Confirmed
Status in unity package in Ubuntu:
  Confirmed
Status in xorg package in Ubuntu:
  Confirmed

Bug description:
  I have a new Dell XPS 13 9343 with the HiDPI touch screen and am using
  an external display port monitor. Occasionally, the mouse cursor
  disappears (sometimes after screen lock, other times just normal
  usage). I saw something on stack exchange that said this might help:

  gsettings set org.gnome.settings-daemon.plugins.cursor active false

  I've done this and it sometimes helps and sometimes doesn't. I've also
  just seen the cursor come back on its own after a few minutes without
  doing anything. Trying to interact with the touch screen, then the
  mouse has no effect. Unplugging and replugging the mouse has no
  effect. Using the touchpad has no effect.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: unity 7.3.2+15.04.20150420-0ubuntu1
  ProcVersionSignature: Ubuntu 3.19.0-21.21-generic 3.19.8
  Uname: Linux 3.19.0-21-generic x86_64
  NonfreeKernelModules: wl
  .tmp.unity.support.test.0:

  ApportVersion: 2.17.2-0ubuntu1.1
  Architecture: amd64
  CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
  CompositorRunning: compiz
  CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
  CompositorUnredirectFSW: true
  CurrentDesktop: Unity
  Date: Mon Jun 22 11:19:40 2015
  DistUpgraded: Fresh install
  DistroCodename: vivid
  DistroVariant: ubuntu
  DkmsStatus:
   bcmwl, 6.30.223.248+bdcom, 3.19.0-18-generic, x86_64: installed
   bcmwl, 6.30.223.248+bdcom, 3.19.0-20-generic, x86_64: installed
   bcmwl, 6.30.223.248+bdcom, 3.19.0-21-generic, x86_64: installed
  GraphicsCard:
   Intel Corporation Broadwell-U Integrated Graphics [8086:1616] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Dell Device [1028:0665]
  InstallationDate: Installed on 2015-06-13 (8 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  MachineType: Dell Inc. XPS 13 9343
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-21-generic root=UUID=7bc4dcd2-0bd8-4e42-b8b7-9f1ed6b8a3e9 ro libata.force=noncq quiet splash vt.handoff=7
  SourcePackage: unity
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/25/2015
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A03
  dmi.board.name: 0310JH
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA03:bd03/25/2015:svnDellInc.:pnXPS139343:pvr01:rvnDellInc.:rn0310JH:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: XPS 13 9343
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.
  version.compiz: compiz 1:0.9.12.1+15.04.20150410.1-0ubuntu1
  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: Mon Jun 22 10:53:54 2015
  xserver.configfile: default
  xserver.errors:

  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                                5153
   vendor                                     SHP
  xserver.version: 2:1.17.1-0ubuntu3

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