Bug#888034: mate-desktop-environment: Right mouse button no longer recognised

[Philipp Pilhofer <philipp.pilhofer@kilikien.de>]

Package: mate-desktop-environment
Version: 1.18.0+2~bpo9+1
Severity: normal

Dear Maintainer,

I updated from mate 1.16 (debian stable) to 1.18 (stretch-backports):

apt install -t stretch-backports mate-desktop-environment
(+ upgrading some packages manually: caja-*, mate-themes)

With 1.16, the right mouse "button" of my touchpad was recognised correctly.
When pressing it now with 1.18, it seems to be recognised as left mouse button.
Note that on my machine (X1 Carbon, 2nd generation) there is no extra "button",
it is just the up right corner of the touchpad. I tried the same on an Xa
Carbon 1st generation, where there is a actual button, and it is not a problem
at all with mate 1.18.

(Sorry if this is the wrong package.)




-- System Information:
Debian Release: 9.3
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.9.0-5-amd64 (SMP w/4 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages mate-desktop-environment depends on:
ii  mate-desktop-environment-core  1.18.0+2~bpo9+1

Versions of packages mate-desktop-environment recommends:
ii  atril                     1.18.3-1~bpo9+1
ii  desktop-base              9.0.2+deb9u1
ii  engrampa                  1.18.3-1~bpo9+1
ii  eom                       1.18.3-1~bpo9+1
ii  ffmpegthumbnailer         2.1.1-0.1+b3
pn  mate-applet-brisk-menu    <none>
ii  mate-applets              1.18.2-1~bpo9+1
ii  mate-calc                 1.18.1-2~bpo9+1
ii  mate-icon-theme-faenza    1.18.1+dfsg1-1~bpo9+1
ii  mate-media                1.18.2-1~bpo9+1
ii  mate-notification-daemon  1.18.1-1~bpo9+1
ii  mate-power-manager        1.18.1-1~bpo9+1
ii  mate-screensaver          1.18.2-1~bpo9+1
ii  mate-system-monitor       1.18.1-2~bpo9+1
ii  mate-user-guide           1.18.0-1~bpo9+1
ii  mate-utils                1.18.3-1~bpo9+1
ii  pluma                     1.18.3-2~bpo9+1

Versions of packages mate-desktop-environment suggests:
ii  bsd-mailx [mail-reader]    8.1.2-0.20160123cvs-4
ii  network-manager-gnome      1.4.4-1
ii  thunderbird [mail-reader]  1:52.5.2-2~deb9u1
pn  x-www-browser | firefox    <none>

-- no debconf information