[Pkg-lxde-maintainers] Bug#905919: lxde: pdf opened with libreoffice despite a proper pdf app (evince) being installed

[hpeter]

Package: lxde
Version: 9
Severity: normal

Dear Maintainer,

Using a stock Debian9.5 LXDE, or the LXDE-live system from USB flash drive,
and double-clicking a pdf in the file manager (pcmanfm), it opens in libreoffice,
instead of the proper pdf-app (evince), which is also installed by default.
After uninstalling libreoffice, it opens in GIMP, instead of evince.

This might be misleading and errorprone for older or non-technical users,
and might be a sign of a more general issue involving file associations.

Workaround: Manually changing the file association, after each installation of Debian.




-- System Information:
Debian Release: 9.5
Architecture: amd64 (x86_64)

Kernel: Linux 4.9.0-7-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages lxde depends on:
ii  galculator           2.1.4-1+b1
ii  gpicview             0.2.5-2+b1
ii  leafpad              0.8.18.1-5
ii  lxappearance         0.6.3-1
ii  lxappearance-obconf  0.2.3-1
ii  lxde-core            9
ii  lxde-icon-theme      0.5.1-2
ii  lxhotkey-gtk         0.1.0-1
ii  lxinput              0.3.5-1
ii  lxrandr              0.3.1-1
ii  lxsession-edit       0.5.3-2
ii  lxterminal           0.3.0-2
ii  xarchiver            1:0.5.4-7

Versions of packages lxde recommends:
ii  clipit                       1.4.2-1.2
ii  deluge                       1.3.13+git20161130.48cedf63-3
ii  evince [pdf-viewer]          3.22.1-3+deb9u1
ii  firefox-esr [www-browser]    52.9.0esr-1~deb9u1
ii  gnome-disk-utility           3.22.1-1
ii  gnome-system-tools           3.0.0-6
ii  gucharmap                    1:9.0.2-1
ii  lightdm [x-display-manager]  1.18.3-1
ii  lxmusic                      0.4.7-1
ii  lxpolkit                     0.5.3-2
ii  menu-xdg                     0.5
ii  smplayer                     16.11.0~ds0-1+deb9u1
ii  usermode                     1.109-1+b2
ii  wicd                         1.7.4+tb2-4
ii  xserver-xorg                 1:7.7+19

Versions of packages lxde suggests:
ii  gimp                 2.8.18-1+deb9u1
pn  libreoffice          <none>
ii  lxlauncher           0.2.5-1
ii  lxtask               0.1.8-1
pn  pidgin               <none>
pn  pk-update-icon       <none>
pn  xfce4-power-manager  <none>

-- no debconf information