Hi, 
I confirm that im-switch patch of gunnarhj( 
https://launchpad.net/~gunnarhj/+archive/misc) works with fresh install ubuntu 
12.10 beta 2 . The ibus icon will appear after login with a few seconds delay. 

I have change the GUI language to Vietnamese and use ibus-unikey with.
Nothing crash after active ibus.

To gunnarhj: You can try by creating new user for testing.

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https://bugs.launchpad.net/bugs/875435

Title:
  iBus indicator does not show on the panel

Status in OEM Priority Project:
  In Progress
Status in OEM Priority Project precise series:
  In Progress
Status in Release Notes for Ubuntu:
  Invalid
Status in “ibus” package in Ubuntu:
  Confirmed
Status in “im-switch” package in Ubuntu:
  In Progress
Status in “ibus” source package in Oneiric:
  Triaged
Status in “im-switch” source package in Oneiric:
  Confirmed
Status in “ibus” source package in Precise:
  Confirmed
Status in “im-switch” source package in Precise:
  In Progress
Status in “ibus” source package in Quantal:
  Confirmed
Status in “im-switch” source package in Quantal:
  In Progress

Bug description:
  IBus icon does not show at Unity panel in some environments, we are
  discovering the real culprit now.

  [Impact]
  Impacts all users of CJK languages or any other user depending on IBUS for 
character composition. This is a rather large user base and the prority of this 
bug has been updated as to reflect the impact on users.
  The missing indicator on session start disables users from having a visual 
cue of the current state of the ibus support for their session, as well as the 
current ibus input method in use, which may change during the course of a 
session. Furthermore, since the underlying issue appears to be related to 
ibus-daemon startup, this may render ibus input unusable until the daemon is 
restarted.

  [Release note for P]
  see https://bugs.launchpad.net/ubuntu/+source/ibus/+bug/875435/comments/23

  [Development Fix]
  (TBD)

  [Stable Fix]
  (TBD)

  [Workaround]
  We have some workarounds, but they are not root fix. The root cause is not 
identified.

  A) gsettings approach:
  see comment 8, comment 23

  B) exec: ibus-daemon -rxd
  RESTARTing ibus-daemon can fix the one-time solution. If user met this 
problem, executing `ibus-daemon -rxd`. This command restart ibus-daemon, and 
fix for current login sessions. But that is not root fix, if user restart the 
session (or reboot system), problem are back-in.

  Notes: If user exec the Ibus icon on Dash, that is not functional.
  Because ibus-daemon are already running by /etc/X11/Xsession.d/80im-
  switch.

  B') .desktop approach (with user initiated ibus restart)
  Workaround is as discussed in this bug report, to apply the debdiff provided 
by Ikuya Awashiro. This change modifies the parameters passed to ibus-daemon's 
.desktop file, that used in a Unity Dash. That provide more better B) approach. 
  the session manager on a new session; and makes ibus-daemon replace any 
previously running ibus daemon for the user.

  [Test Case]
  1) Start a Unity session with a CJK language (Chinese, Japanese, Korean, 
Vietnamese) or any other language depending on ibus to compose characters.
  2) Verify that the ibus indicator is shown in the Unity panel, and that ibus 
input can be used.

  The indicator should be visible in all cases. Since this bug is akin
  to a race condition, it may need a few startups to trigger the bug.

  [Regression Potential]
  Minimal, this only affects the ibus daemon on session startup in the way that 
it gets spawned by the session manager: it will replace any other running ibus 
daemon at the time, though none should be running before ibus-daemon gets 
spawned regardless. A different (or the same) ibus daemon can still be started 
manually.
  Possible issues could include the ibus daemon failing to start altogether 
with the session, in which case the ibus input methods would be unavailable, 
and can be started manually by users (using a terminal).

  [Background]
  (guess by Ikuya AWASHIRO, Fumihito YOSHIDA)
  In Ubuntu/Unity environments, ibus-daemon are initiated by 
/etc/X11/Xsession.d/80im-switch scripts. That invoked at early state on system 
start-up, so too early invoking bring up the race between Unity-panel and 
indicator-ibus. If indicator-ibus are start-up at too fast phase, the 
Unity-panel are not started, that cause "no icon" running.

  ------

  iBus still run but doesn't show off in the panel, in every way. The
  only thing to make it right is do ibus-deamon -rxd

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: ibus 1.3.99.20110419-1ubuntu3
  ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
  Uname: Linux 3.0.0-12-generic i686
  ApportVersion: 1.23-0ubuntu3
  Architecture: i386
  Date: Sun Oct 16 09:19:00 2011
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
  SourcePackage: ibus
  UpgradeStatus: Upgraded to oneiric on 2011-10-13 (2 days ago)

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