[Bug 1157474] Re: kwin in ppa:kubuntu-ppa/backports hangs just after login when launching a random application.

[林博仁(Henry Lin) a.k.a. Ｖ字龍(Vdragon)]

** Description changed:

+ Upstream bug report
+ Bug 317052 – ppa:kubuntu-ppa/backports : QXIMInputContext on QGraphicsView locks in _xcb_conn_wait
+ https://bugs.kde.org/show_bug.cgi?id=317052
+ 
  System: Ubuntu 12.10 x86 32bit with ppa:kubuntu-ppa/backports enabled
  
  How to reproduce
  ---------------------------------
  1. Login to KDE
  2. Launch any application (e.g. Dolphin)
  3. Wait 5 sec.
  
  Symptoms
  ---------------------------------
  * The whole screen hangs, only mouse cursur is movable.
  * It still able to switch to diffrent terminals
  * kwin --replace and any GUI application will hang if executed after this hang until the original kwin is killed
  
  Workaround
  ---------------------------------
  1. switch to TTY terminal and login
  2. send SIGKILL signal to terminate kwin (SIGTERM is not sufficient)
      pkill --signal SIGKILL kwin
  3. run another terminal emulator in TTY terminal
      env DISPLAY=:0 konsole
  4. Switch back to X terminal, execute following command in the Konsole window
       kwin &
  5. redo 1~4 if the problem persists.
  
  Other details
  ----------------------------------
  * It seems that this issue is not related to graphic hardware...
  * ppa-purge the kubuntu-ppa/backports to downgrade everything back to quantal-updates seems to solve this issue too.

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https://bugs.launchpad.net/bugs/1157474

Title:
  kwin in ppa:kubuntu-ppa/backports hangs just after login when
  launching a random application.

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