129: Why doesn't my Meta key work in an xterm window?

  Try all of these methods before asking for further help:

  * You may have big problems using "mwm" as your window manager.  {Does
    anyone know a good generic solution to allow the use of the Meta key in
    Emacs with mwm?}

  * For X11: Make sure it really is a Meta key.  Use "xev" to find out what
    keysym your Meta key generates.  It should be either Meta_L or Meta_R.
    If it isn't, use xmodmap to fix the situation.

  * Make sure the pty the xterm is using is passing 8 bit characters.
    "stty -a" (or "stty everything") should show "cs8" somewhere.  If it
    shows "cs7" instead, use "stty cs8 -istrip" (or "stty pass8") to fix
    it.

  * If there is an rlogin connection between the xterm and the Emacs, the
    "-8" argument may need to be given to rlogin to make it pass all 8 bits
    of every character.

  * If the Emacs is running under Ultrix, it is reported that evaluating
    (set-input-mode t nil) helps.

  * If all else fails, you can make xterm generate "ESC W" when you type
    M-W, which is the same conversion Emacs would make if it got the M-W
    anyway.  In X11R4, the following resource specification will do this:

      XTerm.VT100.EightBitInput: false

    (This changes the behavior of the insert-eight-bit action.)

    With older xterms, you can specify this behavior with a translation:

      XTerm.VT100.Translations: #override \
        Meta: string(0x1b) insert()

    You might have to replace "Meta" with "Alt".