Re: Emacs's set-frame-size can not work well with gnome-shell?

[Dmitry Gutov]

On 14.01.2020 18:50, martin rudalics wrote:
> Run it under gdb with a breakpoint like
>
> break gtkutil.c:1004
>
> and continue until it is hit by tumashu's 'resize-test' invocation.
> Then do p totalwidth and p totalheight (here they are 390 and 360).

Here are the last hits. The first two during the frame's creation:

Thread 1 "emacs" hit Breakpoint 1, xg_frame_set_char_size 
(f=f@entry=0x55555719fae0, width=width@entry=720, 
height=height@entry=360) at gtkutil.c:1004
1004          gtk_window_resize (GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f)),
(gdb) p totalwidth
$3 = 368
(gdb) p totalheight
$4 = 180
(gdb) c
Continuing.

Thread 1 "emacs" hit Breakpoint 1, xg_frame_set_char_size 
(f=f@entry=0x55555719fae0, width=width@entry=720, 
height=height@entry=390) at gtkutil.c:1004
1004          gtk_window_resize (GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f)),
(gdb) p totalwidth
$5 = 368
(gdb) p totalheight
$6 = 195
(gdb) c
Continuing.

And the last one during the attempt to resize it.

Thread 1 "emacs" hit Breakpoint 1, xg_frame_set_char_size 
(f=f@entry=0x5555572f1c60, width=width@entry=720, 
height=height@entry=780) at gtkutil.c:1004
1004          gtk_window_resize (GTK_WINDOW (FRAME_GTK_OUTER_WIDGET (f)),
(gdb) p totalwidth
$1 = 368
(gdb) p totalheight
$2 = 390

I repeated the scenario a few times, the values are stable.

The above was when using a custom configuration. With 'emacs -Q', the 
values are just slightly different (384 and 360).