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

[martin rudalics via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>]

 > Meanwhile, some more observations.  Inside xterm or uxterm the keychord
 > `fn RET' or `meta RET' will fullscreen and persist across CTWM restart.

What does `fn RET' do in an Emacs window?  Or in any other window but
the terminal windows you cite above?

 > Now unrelated to CTWM restart, the following is observed when zooming.

What is zooming?  Just maximizing the window or more?

 > Using the `Window' context menu zoom from CTWM on xterm or uxterm
 > choosing any of the options `Zoom, Zoom-V, Zoom-H' leaves a
 >
 >   - gap at the right and bottom edge for `Zoom',
 >   - gap at bottom edge for `Zoom-V' and
 >   - gap at the right edge for `Zoom-H'.
 >
 > The above suggests CTWM has issues calculating the height and width
 > dimensions for fullscreen on u/xterm.

Usually, terminal windows cannot be really maximized.  They want the
window height be a multiple of their font height + line spacing.

 > Also, from a normal 80x24 u/xterm, when I `Window, Zoom' that results in
 > the gap at right and bottom edge, then when I keychord `meta RET' the
 > first time, I get the borderless fullscreen, keychord the second time
 > and u/xterm returns to a normal 80x24 dimension.

I doubt that a fullscreen terminal can display half a line at the
bottom.  So your borderless fullscreen is likely an artefact.

martin