I'm using Ubuntu 12.04 with Xfce 4.8. Only in some applications, namely TexStudio (v2.6.6) and TexMaker (v4.1), Ctrl+I inserts one Tab character instead of making text italic.
How do I troubleshoot such a keyboard shortcut (mapping) issue?
[Tex/LaTex] Ctrl+I produces Tab character instead of italizing text
italickeyboardtexstudio
Related Solutions
This appears to be related to a bug in version 2.8.4.
tab is assigned to indentSelection, unfortunately the operation can't be left without a shortcut due to a bug (fixed in repository)
From the relevant bug report. Jan Sundermeyer says the bug will be fixed in the next version.
By default Ctrl+I may be set to "inset-toggle" which in regular use doesn't apply, while Ctrl+U should be set to "font-underline" (as is Alt+C U).
You are able to change the key binding sequences to suit your needs. Under Tools > Preferences > Editing > Shortcuts, activate the keys that you're interested in using as shortcut combinations. Specifically, find "font-ital" and "font-underline" under Font, Layouts and Textclasses:
If a bind is already used elsewhere, you can overwrite this to suit your personal needs.
Best Answer
Control I is Tab (I is character code 73 and control subtracts 64 leaving character code 9 which is TAB). Whether that code inserts a character into your document or does something in your editor depends on your editor. Personally I have never used an editor where Ctrl-i makes anything italic, but there may be one I suppose.