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[Launchpad Bug Tracker <1675369@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package metacity - 1:3.18.7-0ubuntu0.3

---------------
metacity (1:3.18.7-0ubuntu0.3) xenial; urgency=medium

  * Backport upstream commit to fix send synthetic ConfigureNotify events
    when receiving ConfigureRequests (synthetic_configurenotify_events.diff,
    LP: #1675369).

 -- Dmitry Shachnev <mitya57@xxxxxxxxxx>  Thu, 23 Mar 2017 21:14:52
+0300

** Changed in: metacity (Ubuntu Xenial)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1675369

Title:
  Metacity Not Sending ConfigureNotify events

Status in metacity package in Ubuntu:
  Fix Released
Status in metacity source package in Xenial:
  Fix Released
Status in metacity source package in Yakkety:
  New

Bug description:
  # Impact
  When using seamless applications such as Rdesktop, the window manager needs to send ConfigureNotify events.  This is specified in ICCCM section 4.1.5.  Without it, software will hang and wait for a response.

  This greatly impacts corporate and enterprise users that are trying to
  integrate Microsoft Windows applications using Rdesktop.

  # Proposed Fix
  A patch has been created here and should be merged:

  https://git.gnome.org/browse/metacity/commit/?h=gnome-3-24&id=f09967fc0f1d65fc7b5057b362b9657154a86079

  Patch for 3.18 branch which was used for Xenial upload is here:

  https://git.gnome.org/browse/metacity/commit/?h=gnome-3-18&id=64e95c2ec2a1669da2ddab6c29108d718f79dfff

  # Test Case
  Use rdesktop in seamless mode:
  rdesktop "%ProgramFiles%\ThinLinc\WTSTools\seamlessrdpshell.exe" -s "notepad" server_ip

  This requires server with windows that is setup for remote access. Also extra software is needed:
  https://www.cendio.com/thinlinc/download-register

  Opening multiple seamless windows and trying to switch between them
  should not cause any noticeable delays / hangs.

  # Regression Potential
  The reporter has verified the fix, and it works. It has also been in Zesty since Mar 20th and so far nobody complained.

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