bug#44002: 27.1; Small window height with VcXsrv X server when built with gtk3 toolkit

[Eli Zaretskii]

> From: "J. Scott Berg" <jsberg-bnl@outlook.com>
> Date: Thu, 15 Oct 2020 01:55:44 +0000
> 
> Run "emacs -Q" on a remote machine, the local X server is VcXsrv on Windows
> The window that opens will only have 5 lines.
> This occurs when emacs is built to use the gtk3 toolkit
> Everything is fine on the local display of the Linux machine
> Everything is fine if emacs is built to use the gtk2 toolkit

Do you have any GTK settings that could affect this, like font
selection or window dimensions?

If that doesn't give any clue, is it possible to you to run Emacs
under GDB, put a breakpoint in adjust_frame_size, and tell when and by
which code are these small dimensions specified during startup?

Thanks.