Bug#782687: gnome-shell: No more drop down menus in some QT apps using gnome 3

[Nicolas Cedilnik]

Package: gnome-shell
Version: 3.14.2-3+b1
Severity: important

Dear Maintainer,

I'm not 100% sure if it is gnome or QT related, but I can't really use QT apps
anymore under my gnome 3 environment.
The main problem is that drop down menus don't work anymore, I can see their
names and highlight them by clicking on them but they won't "open". Also, QT
apps seems to crash way more often than before this bug occured.
I've noticed this happening in Lyx, qt-config, RStudio and Steam, but not in
Virtualbox which also uses QT.

I'd be happy to provide more information or tests as this bug is a really big
problem for my daily computer use.

Cheers,



-- System Information:
Debian Release: 8.0
  APT prefers testing-updates
  APT policy: (500, 'testing-updates'), (500, 'testing-proposed-updates'), (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.16.0-4-amd64 (SMP w/8 CPU cores)
Locale: LANG=fr_FR.utf8, LC_CTYPE=fr_FR.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages gnome-shell depends on:
ii  dconf-gsettings-backend [gsettings-back  0.22.0-1
ii  evolution-data-server                    3.12.9~git20141128.5242b0-2+deb8u2
ii  gir1.2-accountsservice-1.0               0.6.37-3+b1
ii  gir1.2-atspi-2.0                         2.14.0-1
ii  gir1.2-caribou-1.0                       0.4.15-1
ii  gir1.2-clutter-1.0                       1.20.0-1
ii  gir1.2-freedesktop                       1.42.0-2.2
ii  gir1.2-gcr-3                             3.14.0-2
ii  gir1.2-gdesktopenums-3.0                 3.14.1-1
ii  gir1.2-gdm3                              3.14.1-7
ii  gir1.2-gkbd-3.0                          3.6.0-1
ii  gir1.2-glib-2.0                          1.42.0-2.2
ii  gir1.2-gnomebluetooth-1.0                3.14.0-2
ii  gir1.2-gnomedesktop-3.0                  3.14.1-1
ii  gir1.2-gtk-3.0                           3.14.5-1
ii  gir1.2-ibus-1.0                          1.5.9-1
ii  gir1.2-mutter-3.0                        3.14.2-1
ii  gir1.2-networkmanager-1.0                0.9.10.0-7
ii  gir1.2-nmgtk-1.0                         0.9.10.0-2
ii  gir1.2-pango-1.0                         1.36.8-3
ii  gir1.2-polkit-1.0                        0.105-8
ii  gir1.2-soup-2.4                          2.48.0-1
ii  gir1.2-telepathyglib-0.12                0.24.1-1
ii  gir1.2-telepathylogger-0.2               0.8.1-1
ii  gir1.2-upowerglib-1.0                    0.99.1-3.2
ii  gjs                                      1.42.0-1
ii  gnome-backgrounds                        3.14.1-1
ii  gnome-icon-theme-symbolic                3.12.0-1
ii  gnome-settings-daemon                    3.14.2-3
ii  gnome-shell-common                       3.14.2-3
ii  gnome-themes-standard                    3.14.2.2-1
ii  gsettings-desktop-schemas                3.14.1-1
ii  libatk-bridge2.0-0                       2.14.0-2
ii  libatk1.0-0                              2.14.0-1
ii  libc6                                    2.19-17
ii  libcairo2                                1.14.0-2.1
ii  libcanberra-gtk3-0                       0.30-2.1
ii  libcanberra0                             0.30-2.1
ii  libclutter-1.0-0                         1.20.0-1
ii  libcogl-pango20                          1.18.2-3
ii  libcogl20                                1.18.2-3
ii  libcroco3                                0.6.8-3+b1
ii  libdbus-glib-1-2                         0.102-1
ii  libecal-1.2-16                           3.12.9~git20141128.5242b0-2+deb8u2
ii  libedataserver-1.2-18                    3.12.9~git20141128.5242b0-2+deb8u2
ii  libgcr-base-3-1                          3.14.0-2
ii  libgdk-pixbuf2.0-0                       2.31.1-2+b1
ii  libgirepository-1.0-1                    1.42.0-2.2
ii  libgjs0e [libgjs0-libmozjs-24-0]         1.42.0-1
ii  libglib2.0-0                             2.42.1-1
ii  libgstreamer1.0-0                        1.4.4-2
ii  libgtk-3-0                               3.14.5-1
ii  libical1a                                1.0-1.3
ii  libjson-glib-1.0-0                       1.0.2-1
ii  libmozjs-24-0                            24.2.0-2
ii  libmutter0e                              3.14.2-1
ii  libnm-glib4                              0.9.10.0-7
ii  libnm-util2                              0.9.10.0-7
ii  libpango-1.0-0                           1.36.8-3
ii  libpangocairo-1.0-0                      1.36.8-3
ii  libpolkit-agent-1-0                      0.105-8
ii  libpolkit-gobject-1-0                    0.105-8
ii  libpulse-mainloop-glib0                  5.0-13
ii  libpulse0                                5.0-13
ii  libsecret-1-0                            0.18-1+b1
ii  libstartup-notification0                 0.12-4
ii  libsystemd0                              215-14
ii  libtelepathy-glib0                       0.24.1-1
ii  libx11-6                                 2:1.6.2-3
ii  libxfixes3                               1:5.0.1-2+b2
ii  mutter                                   3.14.2-1
ii  python                                   2.7.9-1
ii  telepathy-mission-control-5              1:5.16.3-1

Versions of packages gnome-shell recommends:
ii  gdm3                  3.14.1-7
ii  gkbd-capplet          3.6.0-1
ii  gnome-contacts        3.14.1-1
ii  gnome-control-center  1:3.14.2-3
ii  gnome-user-guide      3.14.1-1
ii  unzip                 6.0-16

gnome-shell suggests no packages.

-- no debconf information