Bug#649579: Gets terminal size wrong when switching between tabs with different font sizes while maximized

[Josh Triplett]

Version: 3.16.2-1

I can still reproduce this with gnome-terminal 3.16.2-1, with the added
complication that sometimes the spurious size changes don't actually
result in the right updates in the programs running in the terminal.
Exact steps to reproduce:

1) Open gnome-terminal.
2) Maximize the gnome-terminal window.
3) Open a program that cares about screen size, such as vim.  To make it
   more obvious what vim thinks the screen size is, you may want "set
   laststatus=2" to create a status line above the command area;
   however, you can also just type ':' to leave a prompt on the last
   line.
4) Open a second tab (Ctrl-Shift-T with the default keybindings).
5) In the second tab, increase the font size by a few steps with Ctrl-+.
6) Switch back to the first tab.

Notice that the terminal-oriented application in the first tab thinks
the screen has gotten smaller, to the width and height of the second
tab.

This reproduces 100% of the time for me, but in theory it *might* be a
race condition with the sending of multiple SIGWINCHes.  Nonetheless,
the right fix is still to stop resizing the terminal at all.

See https://bugzilla.gnome.org/show_bug.cgi?id=731137 upstream.

- Josh Triplett

-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.1.0-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages gnome-terminal depends on:
ii  dconf-gsettings-backend [gsettings-backend]  0.24.0-2
ii  gconf-service                                3.2.6-3
ii  gnome-terminal-data                          3.16.2-1
ii  gsettings-desktop-schemas                    3.16.1-1
ii  libatk1.0-0                                  2.16.0-2
ii  libc6                                        2.19-20
ii  libcairo-gobject2                            1.14.2-2
ii  libcairo2                                    1.14.2-2
ii  libdconf1                                    0.24.0-2
ii  libgconf-2-4                                 3.2.6-3
ii  libgdk-pixbuf2.0-0                           2.31.5-1
ii  libglib2.0-0                                 2.44.1-1.1
ii  libgtk-3-0                                   3.16.6-1
ii  libnautilus-extension1a                      3.14.2-1
ii  libpango-1.0-0                               1.36.8-3
ii  libpangocairo-1.0-0                          1.36.8-3
ii  libuuid1                                     2.27-1
ii  libvte-2.91-0                                0.40.2-2
ii  libx11-6                                     2:1.6.3-1

Versions of packages gnome-terminal recommends:
ii  dbus-x11  1.10.0-2
ii  gvfs      1.24.2-1
ii  yelp      3.16.1-1

gnome-terminal suggests no packages.

-- no debconf information