I installed Ubuntu 14.04 and use fvwm as the windows manager. The Ctrl+space does not set mark in Emacs. It seems that Ctrl+Space does nothing. I use Ctrl+Alt + F2 to go to the console, and Emacs works correctly there. If I use the Ubuntu default windows manager, emacs also works correctly. Does anyone have ideas what could be wrong? Thank you very much.
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You might want to update the title as it's not specific to fvwm. I had the same problem with awesome-wm as well. – Lester Cheung May 17 '14 at 23:34
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1@LesterCheung yep, it is a problem with Ubuntu 14.04 and emacs. (I use KDE for eg.) – bfootdav May 18 '14 at 15:12
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1General problem affecting many applications, see http://askubuntu.com/q/243639. – fuenfundachtzig Oct 29 '14 at 09:59
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I had this same issue and it looks like it's a problem with ibus. From the commandline run: ibus-setup
Under General::Next Input Method you should see <Control>space. Click on the three dots and change it to something else. Hit Apply and close out. ctrl-space should work in Emacs now.
bfootdav
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3OMG!, Ubuntu (or whatever is going on) should not override such a basic editing command in Emacs! – Brady Trainor Aug 23 '14 at 19:39
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@brady-trainor Although ctrl-space is very important for emacs users it is unused by the majority of ubuntu users and having a nice global shortcut for switching language is important, too, at least for non-english users. – user829755 Jun 20 '16 at 05:55
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For kubuntu users:
- go Global shortcut
- add this control+space shortcup to any (undefined) action , (ie: keymap switcher)
- then a popup will tell there is a conflict with other definition
- confirm to reassign
- delete shortcut
rzr
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