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[Chris Good <chris.good@xxxxxxxxxxxxxx>]

I have tested metacity 1:2.34.13-0ubuntu4.1 and while the s key now
works correctly (no longer opens the Applications menu), the Super
(Windows) key no longer works. For example, Windows+Tab no longer
switches between application windows.

I uninstalled the trusty proposed metacity, libmetacity-private0a +
metacity-common, and reinstalled the current 1:2.34.13-0ubuntu4 versions
to verify that the Windows key actually did work before the proposed
patch.

Some may say that the Super key not working is a much smaller problem than the s key always opening the Applications menu.
I'd be OK with not being able to use the Super key but maybe others would consider this a serious regression.
I'll leave it to others more qualified to decide if this should be flagged as verification-done or verification-failed.

My testing was done using Windows 7 Remote Desktop Connection to connect to a Ubuntu 14.04.2 machine running xrdp.
The Ubuntu machine is a client vm of a VMware vSphere host.

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https://bugs.launchpad.net/bugs/1440570

Title:
  VNC'ing into gnome-session-flashback (Metacity) in non-shared desktop
  mode causes Super+KEY pressed behavior

Status in metacity package in Ubuntu:
  Fix Released
Status in metacity source package in Trusty:
  Fix Committed
Status in metacity source package in Utopic:
  Confirmed
Status in metacity source package in Vivid:
  Fix Released

Bug description:
  [Impact]
  When VNC'ing into gnome-session-flashback (Metacity) with either tightvncserver or vnc4server configured for non-shared desktop mode, when one opens a terminal for example, and types the "s" key, it acts as if the Super key is also pressed along with it. Hence, this appears to be a gnome-* issue.

  [Test Case]
  Vivid new install setup for tightvncserver:
  sudo apt-get update && sudo apt-get -y dist-upgrade && sudo apt-get -y install xrdp gnome-session-flashback && sudo apt-get -y remove vino && nano .xsession
  #START
  export XDG_CURRENT_DESKTOP='GNOME-Flashback:Unity'
  exec gnome-session --session=gnome-flashback-metacity --disable-acceleration-check
  #END

  sudo nano /etc/xrdp/xrdp.ini

  change to:
  #START
  [globals]
  bitmap_cache=yes
  bitmap_compression=yes
  port=3389
  crypt_level=high
  channel_code=1
  max_bpp=24
  #black=000000
  #grey=d6d3ce
  #dark_grey=808080
  #blue=08246b
  #dark_blue=08246b
  #white=ffffff
  #red=ff0000
  #green=00ff00
  #background=626c72

  [xrdp1]
  name=sesman-Xvnc
  lib=libvnc.so
  username=ask
  password=ask
  ip=127.0.0.1
  port=-1
  #END

  Log out, log back in, and RDP in via either Windows Remote Desktop
  Connection or Remmina.

  
  [Regression Potential]
  This patch adds an additional check for modmask. It is already in upstream metacity.

  
  WORKAROUND: Applications > System Tools > System Settings > Keyboard > Shortcuts > Disable all shortcuts containing the Super key.

  WORKAROUND: Don't use the .xsession file with tightvncserver, but this
  then creates a shared desktop experience, instead of ones own, not
  seen by the user at the local console.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: vnc4server 4.1.1+xorg4.3.0-37.3ubuntu2
  ProcVersionSignature: Ubuntu 3.19.0-12.12-generic 3.19.3
  Uname: Linux 3.19.0-12-generic x86_64
  ApportVersion: 2.17-0ubuntu1
  Architecture: amd64
  CurrentDesktop: GNOME-Flashback:Unity
  Date: Sun Apr  5 13:10:40 2015
  InstallationDate: Installed on 2014-12-14 (112 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Alpha amd64 (20141213)
  SourcePackage: vnc4
  UpgradeStatus: No upgrade log present (probably fresh install)

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