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					Originally Posted by Quoth  Some of my Linux systems needed this executed in the Console/terminal/command line for QT applications to work properly.im-config -n ibus
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 I just tested Cntrl Shift U 256 Return in Calibre Editor: the main HTML edit window, find and  replace boxes.
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 It's maybe working for you because of your im-config command. I've installed im-config and made  "im-config -n ibus" without effect, but  "im-config -a" says me that I have to restart the system before the cmd takes effect. I'll try this later on, since I cannot reboot now.
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					Originally Posted by Quoth  I disable Caps Lock, make Compose be Caps Lock and then both shift is CapsLock and either cancels. | 
	
 Aaaah, I liked this one, CapsLock is a pain in the ass! (Un)locking with Shift-CapsLock is a very good idea. What is your keymap file to do this? (the file loaded with xmodmap)
(My compose key is Meta-left. Like you, I use it a lot!)