As a result of the threads "How come i wrote a NO-BREAK SPACE in xterm+bash" and "How to disable certain keys", I'm revisiting my own keyboard configuration, starting with the VCs.
My jessie laptop's /etc/default/keyboard contains XKBMODEL="latitude" XKBLAYOUT="gb" XKBVARIANT="" XKBOPTIONS="caps:none,compose:menu,nbsp:none,terminate:ctrl_alt_bksp" All the XKBOPTIONS items work as expected except for nbsp:none. I would have expected that this would make the Space bar produce an ordinary space, "<space>", regardless of any modifiers pressed. In fact, Ctrl-Space emits ^@ and Alt-Space emits ^[<space> One of the things I hoped to configure is the Control key, in particular to get Ctrl-arrows and the other Ctrl-"navigation" keys to emit different codes from their non-Ctrl codes. Only BackSpace (of those keys) appears to be modified (and Ctrl-Fn keys emit nothing). An important file is /etc/console-setup/cached_UTF-8_del.kmap.gz What I haven't worked out is: what puts this cache file together? It's obviously been constructed because near the end it says: # The content of this file will be appended to the keyboard layout. followed by commented examples of changes one might make. Where was the so-called "this file" found when this cache was constructed? $ man keymaps documents, I think, what I want to do, but I can't see what file to do it on. It just says "You can then make a small local file redefining only those modifier combinations and loading it after the main file." However, /etc/default/keyboard only has KMAP which has to refer to a complete replacement map. $ locate keymap and $ locate kmap don't turn up anything obvious to me. Cheers, David.
