bug#74496: 30.0.91; fullscreen frame set with F11 is shifted when ctwm restarts

[martin rudalics]

> and then tty color is disabled using
>
>    (defun x/tty-color-mode-no ()
>      "Disable color in emacsclient session."
>      (interactive)
>      (set-frame-parameter nil 'tty-color-mode 'no))

Who does that?  And if in that emacs you set

(set-frame-parameter nil 'tty-color-mode 'yes)

and evaluate

>          (set-face-attribute 'default nil :background "red")

does it have any effect?

BTW I installed CTWM here but I have no idea how to restart it from
within a fullscreen Emacs frame.  Any attemtps to assign f.restart to
"F9" in the init file has CTWM hang and sometimes spills out that the
init file has a syntax error.

martin