[pkg-cinnamon] Bug#825589: nemo: flashes (desktop icons disappears/appears) on every app start

[Norbert Preining]

Package: nemo
Version: 3.0.1-1
Severity: important

HI all,

thanks for packaging cinnamon 3 for Debian, this is much appreciated.
Unfortunately nemo is exhibiting strange behaviour: Whenever I start
an application (actually it *seems* that only gtk applications are
concerned - starting a purely qt app does not trigger the effect!)
the icons on the desktop disappear for an instant, probably 200ms or so,
and then reappear.

In the xsession-errors I see many things like:
(nemo:2533): Gtk-WARNING **: Allocating size to NemoWindowPane 0x2b35120 without calling gtk_widget_get_preferred_
width/height(). How does the code know the size to allocate?

(nemo:2533): Gtk-WARNING **: Allocating size to GtkGrid 0x31c3580 without calling gtk_widget_get_preferred_width/h
eight(). How does the code know the size to allocate?

which coincides exactly with the flashing behaviour.

Do you have any idea what this might be?

All the best

Norbert

-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (200, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.6.0 (SMP w/4 CPU cores; PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages nemo depends on:
ii  desktop-file-utils         0.22-1
ii  gsettings-desktop-schemas  3.20.0-3
ii  gvfs                       1.28.2-1
ii  libatk1.0-0                2.20.0-1
ii  libc6                      2.22-9
ii  libcairo-gobject2          1.14.6-1+b1
ii  libcairo2                  1.14.6-1+b1
ii  libcinnamon-desktop4       3.0.1-2
ii  libexempi3                 2.3.0-2
ii  libexif12                  0.6.21-2
ii  libgail-3-0                3.20.5-4
ii  libgdk-pixbuf2.0-0         2.34.0-1
ii  libglib2.0-0               2.48.1-1
ii  libglib2.0-data            2.48.1-1
ii  libgtk-3-0                 3.20.5-4
ii  libnemo-extension1         3.0.1-1
ii  libnotify4                 0.7.6-2
ii  libpango-1.0-0             1.40.1-1
ii  libpangocairo-1.0-0        1.40.1-1
ii  libx11-6                   2:1.6.3-1
ii  libxml2                    2.9.3+dfsg1-1
ii  nemo-data                  3.0.1-1
ii  shared-mime-info           1.6-1

Versions of packages nemo recommends:
ii  cinnamon-l10n    3.0.0-1
ii  gvfs-backends    1.28.2-1
ii  librsvg2-common  2.40.15-1
ii  nemo-fileroller  3.0.0-1~

Versions of packages nemo suggests:
ii  atril [pdf-viewer]                1.14.1-1
pn  eog                               <none>
ii  evince [pdf-viewer]               3.20.0-3
ii  okular [pdf-viewer]               4:16.04.0-1
ii  vlc [mp3-decoder]                 2.2.3-1
ii  vlc-nox [mp3-decoder]             2.2.3-1
ii  xdg-user-dirs                     0.15-2
ii  zathura-pdf-poppler [pdf-viewer]  0.2.6-1

-- no debconf information