Bug#869119: gnome-terminal: Wheel/touchpad scrolling hangs terminal in vi/less

[Conrad J.C. Hughes (for Debian package stuff)]

Package: gnome-terminal
Version: 3.22.2-1
Severity: normal

Dear Maintainer,

* What led up to the situation?

When using a full-terminal program (e.g. less, vim) in gnome-terminal, mouse
wheel/touchpad scrolling seems to hang the terminal for a bit.  This becomes
particularly aggravated if you scroll up and down quite a bit (as might happen
while scanning a long document, for example).

* What exactly did you do (or not do) that was effective (or ineffective)?

Started vim or less on a long file.  Then swiped or mouse-wheeled down and up.

* What was the outcome of this action?

Scrolling stopped, and the terminal became non-responsive (even
control-Z/suspend won't work, for example).

* What outcome did you expect instead?

Expected it to keep scrolling in response to input, or to react to my typing.

There's no indication of high load while this is happening by the way.



-- System Information:
Debian Release: 9.0
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.9.0-3-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_GB.utf8, LC_CTYPE=en_GB.utf8 (charmap=UTF-8), LANGUAGE=en_GB.utf8 (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]  0.26.0-2+b1
ii  gnome-terminal-data                          3.22.2-1
ii  gsettings-desktop-schemas                    3.22.0-1
ii  libatk1.0-0                                  2.22.0-1
ii  libc6                                        2.24-11+deb9u1
ii  libdconf1                                    0.26.0-2+b1
ii  libglib2.0-0                                 2.50.3-2
ii  libgtk-3-0                                   3.22.11-1
ii  libnautilus-extension1a                      3.22.3-1
ii  libpango-1.0-0                               1.40.5-1
ii  libuuid1                                     2.29.2-1
ii  libvte-2.91-0                                0.46.1-1
ii  libx11-6                                     2:1.6.4-3

Versions of packages gnome-terminal recommends:
ii  dbus-user-session [default-dbus-session-bus]  1.10.18-1
ii  dbus-x11 [dbus-session-bus]                   1.10.18-1
ii  gvfs                                          1.30.4-1
ii  yelp                                          3.22.0-1

gnome-terminal suggests no packages.

-- no debconf information