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I don't think this is a bug, but rather a gtk-"feature". Ctrl+Shift+u is used to provide an unicode-number for special-characters (e.g. U+00A9 for the copyright-sign). Try the same in gedit, it's default in every gtk-app.
Beginning with gtk+2.10, only the ctrl+shift+u shortcut is affected, before it was ctrl+shift+a-f (or so), where e.g. ctrl+shift+f (bold in ooo) did not work. The only way to "fix" this would be, to disable the gtk-input-method in favour of x-input-method.
An easier workaround would be to change the shortcut from ctrl+shift+u into e.g. ctrl+u.
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copied information over from duplicate:
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I don't think this is a bug, but rather a gtk-"feature". Ctrl+Shift+u is used to provide an unicode-number for special-characters (e.g. U+00A9 for the copyright-sign). Try the same in gedit, it's default in every gtk-app.
Beginning with gtk+2.10, only the ctrl+shift+u shortcut is affected, before it was ctrl+shift+a-f (or so), where e.g. ctrl+shift+f (bold in ooo) did not work. The only way to "fix" this would be, to disable the gtk-input-method in favour of x-input-method.
An easier workaround would be to change the shortcut from ctrl+shift+u into e.g. ctrl+u.
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