Find and remove a system-wide keyboard shortcut

Question

After updating to Xubuntu 14.04 the other day, I noticed Ctrl + Space stopped working in both Eclipse and NetBeans, but I cannot find where it's bound. Nor does it appear to do anything.

I have looked in the Settings Manager on the Keyboard, Window Manager, and Settings Editor (XFCE-specific) applets, but none of the commands are bound to that combination. Is there another applet that defines system-wide shortcuts?

Do you have synapse installed? Synapse natively uses ctrl + space. — Parto, Jul 15 '14 at 05:43
@Parto dpkg -s synapse gives dpkg-query: package 'synapse' is not installed and no information is available. I never installed it before, and it doesn't seem to be available for 14.04 yet. — David Harkness, Jul 15 '14 at 21:40

score 2 · Accepted Answer · answered Jul 15 '14 at 22:07

According to this bug thread, one of the recent versions of ibus was either added in 14.04 or added a new key binding for switching input methods. Luckily, removing the binding is trivial.

Run ibus-setup from the command line
Click ... to the far right of Next input method
Click Delete
Click OK
Click Close

Note to future self: Never dismiss the most obvious search query—"ubuntu 14.04 ctrl-space"—without trying it first!

Find and remove a system-wide keyboard shortcut

1 Answers1