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From: albert@Sunburn.Stanford.EDU (Albert Peters)
Newsgroups: comp.windows.x
Subject: xmodmap: bad set modifier mapping
Message-ID: <1991Mar29.213742.22460@neon.Stanford.EDU>
Date: 29 Mar 91 21:37:42 GMT
Sender: news@neon.Stanford.EDU (USENET News System)
Organization: Computer Science Department, Stanford University
Lines: 43

Hi.  Can someone explain why I'm getting this error message?  What does the
message mean?  Is there anyway to do what I want without getting the error?

I'm trying to use xmodmap to reconfigure the keyboard on a VAX 2000
running X.  Most things work, but there is one command which gives a
mysterious error message.  The initial keysyms are as follows:

    keycode keysym
    ------  ------
    175     Control_L
    176     Caps_Lock
    124     Help

I want to make the key which is labeled "Caps_Lock" (176) to act as an 
additional control key.  And, I want the key labeled "Help" (124) to act 
as Caps_Lock.  Here's the part that works:

    % xmodmap -
    remove Lock = Caps_Lock
    keycode 176 = Control_R
    add Control = Control_R
    keycode 124 = Caps_Lock
    ^D
    %

But, when I try to do the last step, the following happens:

    % xmodmap -
    add Lock = Caps_Lock
    xmodmap: bad set modifier mapping
    %

xev reveals that I have successfully assigned "Caps_Lock" to the "Help" key.
But, the modifier map doesn't have it and it doesn't work as desired.

I have also tried KP_F1, F14, F5, and TAB with similar results.

Any insight would be appreciated.  Please respond by EMAIL to 
albert@cs.Stanford.EDU.

Thanks,

--Albert