Disabling a specific key

[Marko Vojinovic]

On Fri, 19 Dec 2014 10:34:54 +1300
Rolf Turner <r.turner at auckland.ac.nz> wrote:
> On 19/12/14 08:27, jd1008 wrote:
> >
> > If you do not know the KeyCode, run the program:
> > showkey
> >
> > and press the key in question
> > and it's code will be displayed.
> > You must wait 10 seconds of idle
> > and showkey program will exit;
> > then run the sudo script above.
> >
> 
> This looks very useful to me .... but as usual I fall at the first 
> hurdle.  When I type showkey or "showkey -k" I get:
> 
> > Couldn't get a file descriptor referring to the console
> 
> And that's it.  Anything I can do about this?  (Please note:  I am 
> running Fedora 17 --- yes, I know --- and using a Mate desktop; Mate 
> 1.6.1 .)

You need to run showkey in a proper virtual terminal, aka ctrl-alt-f3
or such. It was not designed to work under X.

HTH, :-)
Marko