Re: Caps Lock affects Ctrl+keys

[Emanuel Berg]

Yuri Khan <yuri.v.khan@gmail.com> writes:

>> No, the problem is in the Linux kernel emacs is by
>> no means unique in this behavior.
>
> Kernel? I don't think so. xev(1) reports different
> output when I press Ctrl+Shift+Z and Ctrl+Z with Caps
> on. Firefox opens a new tab on Ctrl+T (and restores
> the last closed tab on Ctrl+Shift+T), no matter if
> Caps is on or off.

Some information on this, see if you can figure it out:

In keymaps(5), there is some information what to do
with caps:

> Which of the actions bound to a given key is taken
> when it is pressed depends on what modifiers are in
> effect at that moment.  The keyboard driver supports
> 9 modifiers. These modifiers are labeled (completely
> arbitrarily) Shift, AltGr, Control, Alt, ShiftL,
> ShiftR, CtrlL, CtrlR and CapsShift.  Each of these
> modifiers has an associated weight of power of two
> according to the following table:

              > modifier             weight
              > Shift                     1
              > AltGr                     2
              > Control                   4
              > Alt                       8
              > ShiftL                   16
              > ShiftR                   32
              > CtrlL                    64
              > CtrlR                   128
              > CapsShift               256

# swap control and caps
keycode  58 = Control
keycode  29 = Caps_Lock

# always enable on caps, disable on either shift
keycode  42 = Uncaps_Shift # left shift
keycode  54 = Uncaps_Shift # right shift
keycode  58 = Caps_On      # caps

Note: Get the keycodes with 'showkey', then update
changes to the remap file with 'sudo loadkeys'. If
'showkey' complains it can't get access to the console
it means you are running it for example in tmux, if so
use 'sudo showkey' (every time) or 'sudo chmod u+s
/usr/bin/showkey' to make it work ever since.

With 'showkey -s', it doesn't seem to be possible to
get what you describe.

--
underground experts united:
http://user.it.uu.se/~embe8573