Now that FCITX-QIMPANEL is properly installed on my LUBUNTU 14.04 (see this problem on askubuntu Installing SOGOU 搜狗拼音) I still have a small problem :

How to remove this black square that appears near my cursor (where the input method rectangle appears when I'm typing) ?

If you have any idea, thank you for your suggestions. enter image description here


Answered by Aron Xu on launchpad (https://bugs.launchpad.net/ubuntu/+source/fcitx/+bug/1309841) Lubuntu has no compositing window manager by default, that's why openbox didn't know how to deal with transparency.

So here is the solution to deal with this problem :

  • sudo add-apt-repository ppa:richardgv/compton
  • sudo apt-get update && sudo apt-get install compton
  • Then follow this post http://ubuntuforums.org/showthread.php?t=2144468, but with shadow = false;
  • Restart, and that's it ! No more black square.

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