> First frame with menu bar:

Whatever it is, I can't figure out what's going on.  It's basically the
same issue that's harassing me all the time.  In a frame with menu bar
we request an initial frame of size 644x696 here:

 > xg_frame_set_char_size, visible, PS=1328x1260, XS=1328x1260, DS=1328x1260
 >   +values, PS=200x195, XS=664x696

The 696 come from (/ (+ 1260 50 82) 2) where the 1260 is the native
pixel height of the frame calculated as (* 36 35) where 36 is our number
of lines and 35 is your frame character height.  50 is the height of the
menu bar, 92 the height of the tool bar and 2 is the scaling factor.  I
cannot spot any rounding problem here.

 > ConfigureNotify, PS=1328x1260, XS=1328x1258, DS=1328x1260
 > xg_frame_resized, rejected, PS=1328x1260, XS=1328x1258, DS=664x696

Now we get a ConfigureNotify event that instead of giving us a native
pixel height of 1260 gives us a height of 1258 and we reject it.  Where
did those two pixels go to?  I suppose I'll never find out.

The next two things I'd ask you to do are:

- Apply the patch gtkutil-reject-2024-10-02.diff which adds a tolerance
   of two pixels in order to avoid rejecting the ConfigureNotify and post
   the four histories as before.

- Apply the patch gtkutil-reject-2024-10-02(25).diff (from a pristine
   Emacs).  This is like the previous patch but makes the initial frame
   only 25 lines high.  Again please post the histories for all four
   cases.

Thanks, martin