Package: virtualbox Version: 5.1.22-dfsg-1 Severity: grave Dear Maintainer, the program fails to start with the following message:
$ LANG=C virtualbox Qt FATAL: This application failed to start because it could not find or load the Qt platform plugin "xcb" in "". Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, xcb. Reinstalling the application may fix this problem. -- System Information: Debian Release: 9.0 APT prefers unstable APT policy: (500, 'unstable'), (500, 'testing') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.9.0-3-amd64 (SMP w/4 CPU cores) Locale: LANG=it_IT.UTF-8, LC_CTYPE=it_IT.UTF-8 (charmap=UTF-8), LANGUAGE=it_IT.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages virtualbox depends on: ii adduser 3.115 ii init-system-helpers 1.48 ii libc6 2.24-11 ii libcurl3-gnutls 7.52.1-5 ii libdevmapper1.02.1 2:1.02.137-2 ii libgcc1 1:6.3.0-18 ii libgsoap10 2.8.35-4 ii libpng16-16 1.6.28-1 ii libpython3.5 3.5.3-3 ii libsdl1.2debian 1.2.15+dfsg1-4 ii libssl1.1 1.1.0f-3 ii libstdc++6 6.3.0-18 ii libvncserver1 0.9.11+dfsg-1 ii libvpx4 1.6.1-3 ii libx11-6 2:1.6.4-3 ii libxcursor1 1:1.1.14-1+b4 ii libxext6 2:1.3.3-1+b2 ii libxml2 2.9.4+dfsg1-2.2 ii libxmu6 2:1.1.2-2 ii libxt6 1:1.1.5-1 ii procps 2:3.3.12-3 ii python3 3.5.3-1 ii python3.5 3.5.3-3 ii virtualbox-dkms [virtualbox-modules] 5.1.22-dfsg-1 ii zlib1g 1:1.2.8.dfsg-5 Versions of packages virtualbox recommends: ii libgl1-mesa-glx [libgl1] 13.0.6-1+b2 ii libqt5core5a 5.7.1+dfsg-3+b1 ii libqt5opengl5 5.7.1+dfsg-3+b1 ii libqt5widgets5 5.7.1+dfsg-3+b1 ii virtualbox-qt 5.1.22-dfsg-1 Versions of packages virtualbox suggests: pn vde2 <none> ii virtualbox-guest-additions-iso 5.1.22-1 -- no debconf information