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[Daniel d'Andrada <daniel.dandrada@xxxxxxxxxxxxx>]

On a side note: multitouch in xorg is very problematic. Just now I had
to reboot my xps touch screen laptop because the mouse pointer emulation
logic no longer worked (pointer simply disappeared on touch). In another
attempt playing with multitouch, xserver simply crashed and I was sent
back to the login screen.

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https://bugs.launchpad.net/bugs/1307701

Title:
  Unity does not get touch events when QML apps running

Status in OEM Priority Project:
  New
Status in OEM Priority Project trusty series:
  Triaged
Status in “unity” package in Ubuntu:
  In Progress

Bug description:
  When running an SDK app on the desktop, it's not possible to use the
  touchscreen to move windows, use the launcher, etc. The SDK app seems
  to consume all touchscreen events.

  To reproduce:
  1) On a desktop/laptop with a touchscreen (I am using a Dell XPS13), install 14.04 and check that the touchscreen works for moving windows
  2) Install the camera-app package from universe (I have 2.9.1+14.04.20140331-0ubuntu1)
  3) Launch the camera app
  4) Touch once inside the camera-app window
  5) Use the touchscreen to drag the camera-app window

  Expected results:
  You can move the camera-app window using the touchscreen

  Actual results:
  You cannot move the camera-app window, or perform any other touch tasks in unity, with the touchscreen

  This only affects touchscreen input - mouse/touchpad input is not
  affected

  This affects all apps written with the SDK (I tried camera-app,
  gallery-app, reminders-app). It's 100% reproducible.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: unity 7.2.0+14.04.20140411-0ubuntu1
  ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
  Uname: Linux 3.13.0-24-generic x86_64
  ApportVersion: 2.14.1-0ubuntu2
  Architecture: amd64
  CompizPlugins: [core,commands,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
  CurrentDesktop: Unity
  Date: Mon Apr 14 14:59:09 2014
  DistributionChannelDescriptor:
   # This is a distribution channel descriptor
   # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
   canonical-oem-somerville-precise-amd64-20130203-1
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2013-12-02 (132 days ago)
  InstallationMedia: Ubuntu 12.04 "Precise" - Build amd64 LIVE Binary 20130203-13:50
  SourcePackage: unity
  UpgradeStatus: Upgraded to trusty on 2014-02-12 (61 days ago)

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