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[Launchpad Bug Tracker <1242633@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package libxi - 2:1.7.1.901-1ubuntu1~precise1

---------------
libxi (2:1.7.1.901-1ubuntu1~precise1) precise-proposed; urgency=low

  * Copy package to precise from saucy.
  * Compile correctly with both pointer barrier implementations. (LP: #1242633)
  * Fix build-depends and conflicts for precise.
 -- Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxx>   Wed, 04 Sep 2013 10:01:16 +0200

** Changed in: libxi (Ubuntu Precise)
       Status: Fix Committed => Fix Released

** Changed in: unity (Ubuntu Precise)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1242633

Title:
  unity pointer barriers sru bug

Status in “libxfixes” package in Ubuntu:
  In Progress
Status in “libxi” package in Ubuntu:
  In Progress
Status in “qt4-x11” package in Ubuntu:
  In Progress
Status in “unity” package in Ubuntu:
  In Progress
Status in “unity-2d” package in Ubuntu:
  In Progress
Status in “x11proto-input” package in Ubuntu:
  In Progress
Status in “libxfixes” source package in Precise:
  Fix Released
Status in “libxi” source package in Precise:
  Fix Released
Status in “qt4-x11” source package in Precise:
  Fix Released
Status in “unity” source package in Precise:
  Fix Released
Status in “unity-2d” source package in Precise:
  Fix Released
Status in “x11proto-input” source package in Precise:
  Fix Released

Bug description:
  x11proto-input, libxfixes, libxi, unity and unity-2d in precise needs
  updates to work with the new pointer barrier api from x1.14.

  [Impact]
   * Pointer barrier api has changed between 1.13 and 1.14. (xorg-server-lts-saucy)
   * Modifications in unity and unity-2d are required to support both api's.

  [Test Case]
   * Update all packages.
   * Test pointer barriers on an old xorg-server, they should continue to work.
   * Test pointer barriers on the new xorg-server, they should work.

  [Regression Potential]
    * Low, it enables a separate code path for pointer barriers. The code in unity is a bit different due to copying the rework from upstream unity and keeping the old paths for legacy pointer barriers. Upstream dropped the old paths.

  [Other Info]
    * It's a bit of a hack. The old pointer barrier symbols live in libxfixes, the new ones in libxi. Because of the overlap some modifications had to be made to allow both pointer barriers to be included. This works as well as it can.
   * Depending on the queried libxi2/libxfixes versions, old pointer barriers or new ones are used.

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