From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4) Gecko/20030624
Netscape/7.1

Description of problem:

  I am attempting to encode keypad keys using xmodmap
  I can switch keys around with no problems

  However if I use for example

    i.e.  xmodmap -verbose -e "keycode 79=Undo"
    or    xmodmap -verbose -e "keycode 79=0xff65"   
 
 it should program the Keypad Key 7 with \e[26~  which is defined as Undo which
for example I have programed emacs to understand as Undo.

  xev and xmodmap -pk  says I have encoded Undo  but when I press the
  key I get a null string. I get null string even reading the
  key input from a simple program. 

  If I encode a keysym which I see in the xmodmap -pk listing on the Linux
system then that switch works. However if the keysym is not in that small list
such as Undo (F27) which xmodmap however does recognize as 0xff65 then it does
not work.  i.e. I can't program new escape sequences not on my linux keyboard,
even those which have been associated with standard symbols.

  I am using RedHat 7.3 with Ximian Gnome 2.0 but I see the same error
on RedHat 6.2 or 8.0 using standard Gnome



Version-Release number of selected component (if applicable):


How reproducible:
Always

Steps to Reproduce:
1. xmodmap -verbose -e "keycode 79=Undo"
2. press keypad 7
3. 
    

Actual Results:  Null string returned

Expected Results:  generate the encoded escape sequence \esc[26~

Additional info:

  I have personalized my keyboard for emacs on a SunSPARC, and this works even
via remote SSH login to this Linux PC from the SunSPARC. 
I am trying to get similer mapping working directly on linux PC