Same problem here. I can add that this problem exists in my installation indeed before to upgrade to 14.04. jtome@revo:~$ rhythmbox (rhythmbox:18119): Gtk-CRITICAL **: gtk_css_provider_load_from_path: assertion 'path != NULL' failed g_dbus_connection_real_closed: Remote peer vanished with error: Error receiving message: Connection reset by peer (g-io-error-quark, 0). Exiting. Violación de segmento (`core' generado) jtome@revo:~$ dpkg -l |grep rhythmbox ii gir1.2-rb-3.0 3.0.2-0ubuntu1 i386 GObject introspection data for the rhythmbox music player rc librhythmbox-core5 2.96-0ubuntu4.2 i386 support library for the rhythmbox music player rc librhythmbox-core6 2.98-0ubuntu5 i386 support library for the rhythmbox music player rc librhythmbox-core7 2.99.1-0ubuntu1 i386 support library for the rhythmbox music player ii librhythmbox-core8 3.0.2-0ubuntu1 i386 support library for the rhythmbox music player ii rhythmbox 3.0.2-0ubuntu1 i386 music player and organizer for GNOME ii rhythmbox-data 3.0.2-0ubuntu1 all data files for rhythmbox ii rhythmbox-mozilla 3.0.2-0ubuntu1 i386 Rhythmbox Mozilla plugin ii rhythmbox-plugin-cdrecorder 3.0.2-0ubuntu1 i386 burning plugin for rhythmbox music player ii rhythmbox-plugin-magnatune 3.0.2-0ubuntu1 i386 Magnatune plugin for rhythmbox music player ii rhythmbox-plugin-zeitgeist 3.0.2-0ubuntu1 all zeitgeist plugin for rhythmbox music player ii rhythmbox-plugins 3.0.2-0ubuntu1 i386 plugins for rhythmbox music player jtome@revo:~$ ldd -r /usr/lib/librhythmbox-core.so.8 linux-gate.so.1 => (0xb77a4000) libm.so.6 => /lib/i386-linux-gnu/libm.so.6 (0xb75f6000) libtotem-plparser.so.18 => /usr/lib/libtotem-plparser.so.18 (0xb75d8000) libgudev-1.0.so.0 => /usr/lib/i386-linux-gnu/libgudev-1.0.so.0 (0xb75cc000) libwebkitgtk-3.0.so.0 => /usr/lib/i386-linux-gnu/libwebkitgtk-3.0.so.0 (0xb58c2000) libsoup-2.4.so.1 => /usr/lib/i386-linux-gnu/libsoup-2.4.so.1 (0xb5826000) libpeas-gtk-1.0.so.0 => /usr/lib/libpeas-gtk-1.0.so.0 (0xb5818000) libgtk-3.so.0 => /usr/lib/i386-linux-gnu/libgtk-3.so.0 (0xb52ca000) libpeas-1.0.so.0 => /usr/lib/libpeas-1.0.so.0 (0xb52b5000) libgdk-3.so.0 => /usr/lib/i386-linux-gnu/libgdk-3.so.0 (0xb5210000) libatk-1.0.so.0 => /usr/lib/i386-linux-gnu/libatk-1.0.so.0 (0xb51ef000) libpangocairo-1.0.so.0 => /usr/lib/i386-linux-gnu/libpangocairo-1.0.so.0 (0xb51e2000) libgdk_pixbuf-2.0.so.0 => /usr/lib/i386-linux-gnu/libgdk_pixbuf-2.0.so.0 (0xb51bf000) libpango-1.0.so.0 => /usr/lib/i386-linux-gnu/libpango-1.0.so.0 (0xb5171000) libcairo.so.2 => /usr/lib/i386-linux-gnu/libcairo.so.2 (0xb504e000) libgirepository-1.0.so.1 => /usr/lib/libgirepository-1.0.so.1 (0xb5017000) libxml2.so.2 => /usr/lib/i386-linux-gnu/libxml2.so.2 (0xb4ebd000) libtdb.so.1 => /usr/lib/i386-linux-gnu/libtdb.so.1 (0xb4ea9000) libjson-glib-1.0.so.0 => /usr/lib/i386-linux-gnu/libjson-glib-1.0.so.0 (0xb4e83000) libgio-2.0.so.0 => /usr/lib/i386-linux-gnu/libgio-2.0.so.0 (0xb4d02000) libgstaudio-1.0.so.0 => /usr/lib/i386-linux-gnu/libgstaudio-1.0.so.0 (0xb4cb0000) libgstbase-1.0.so.0 => /usr/lib/i386-linux-gnu/libgstbase-1.0.so.0 (0xb4c4c000) libgstreamer-1.0.so.0 => /usr/lib/i386-linux-gnu/libgstreamer-1.0.so.0 (0xb4b49000) libgobject-2.0.so.0 => /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 (0xb4af6000) libglib-2.0.so.0 => /lib/i386-linux-gnu/libglib-2.0.so.0 (0xb49ea000) libgstpbutils-1.0.so.0 => /usr/lib/i386-linux-gnu/libgstpbutils-1.0.so.0 (0xb49c5000) libgstcontroller-1.0.so.0 => /usr/lib/i386-linux-gnu/libgstcontroller-1.0.so.0 (0xb49b4000) libgsttag-1.0.so.0 => /usr/lib/i386-linux-gnu/libgsttag-1.0.so.0 (0xb497c000) libpthread.so.0 => /lib/i386-linux-gnu/libpthread.so.0 (0xb495f000) libc.so.6 => /lib/i386-linux-gnu/libc.so.6 (0xb47b0000) /lib/ld-linux.so.2 (0xb77a5000) libgmime-2.6.so.0 => /usr/lib/i386-linux-gnu/libgmime-2.6.so.0 (0xb4742000) libarchive.so.13 => /usr/lib/i386-linux-gnu/libarchive.so.13 (0xb4696000) libudev.so.1 => /lib/i386-linux-gnu/libudev.so.1 (0xb4683000) libjavascriptcoregtk-3.0.so.0 => /usr/lib/i386-linux-gnu/libjavascriptcoregtk-3.0.so.0 (0xb3ff5000) libenchant.so.1 => /usr/lib/i386-linux-gnu/libenchant.so.1 (0xb3fe9000) libharfbuzz-icu.so.0 => /usr/lib/i386-linux-gnu/libharfbuzz-icu.so.0 (0xb3fe5000) libharfbuzz.so.0 => /usr/lib/i386-linux-gnu/libharfbuzz.so.0 (0xb3f8f000) libgeoclue.so.0 => /usr/lib/i386-linux-gnu/libgeoclue.so.0 (0xb3f7b000) libgmodule-2.0.so.0 => /usr/lib/i386-linux-gnu/libgmodule-2.0.so.0 (0xb3f75000) libgstapp-1.0.so.0 => /usr/lib/i386-linux-gnu/libgstapp-1.0.so.0 (0xb3f67000) libgstfft-1.0.so.0 => /usr/lib/i386-linux-gnu/libgstfft-1.0.so.0 (0xb3f5b000) libgstvideo-1.0.so.0 => /usr/lib/i386-linux-gnu/libgstvideo-1.0.so.0 (0xb3f13000) libjpeg.so.8 => /usr/lib/i386-linux-gnu/libjpeg.so.8 (0xb3eb8000) libsecret-1.so.0 => /usr/lib/i386-linux-gnu/libsecret-1.so.0 (0xb3e6a000) libxslt.so.1 => /usr/lib/i386-linux-gnu/libxslt.so.1 (0xb3e2c000) libGL.so.1 => /usr/lib/nvidia-331-updates/libGL.so.1 (0xb3d28000) libdl.so.2 => /lib/i386-linux-gnu/libdl.so.2 (0xb3d23000) libfontconfig.so.1 => /usr/lib/i386-linux-gnu/libfontconfig.so.1 (0xb3ce8000) libfreetype.so.6 => /usr/lib/i386-linux-gnu/libfreetype.so.6 (0xb3c48000) libpng12.so.0 => /lib/i386-linux-gnu/libpng12.so.0 (0xb3c20000) libsqlite3.so.0 => /usr/lib/i386-linux-gnu/libsqlite3.so.0 (0xb3b63000) libicui18n.so.52 => /usr/lib/i386-linux-gnu/libicui18n.so.52 (0xb3952000) libicuuc.so.52 => /usr/lib/i386-linux-gnu/libicuuc.so.52 (0xb37e0000) libwebp.so.5 => /usr/lib/i386-linux-gnu/libwebp.so.5 (0xb378f000) libXcomposite.so.1 => /usr/lib/i386-linux-gnu/libXcomposite.so.1 (0xb378b000) libXdamage.so.1 => /usr/lib/i386-linux-gnu/libXdamage.so.1 (0xb3787000) libXrender.so.1 => /usr/lib/i386-linux-gnu/libXrender.so.1 (0xb377c000) libXt.so.6 => /usr/lib/i386-linux-gnu/libXt.so.6 (0xb3720000) libX11.so.6 => /usr/lib/i386-linux-gnu/libX11.so.6 (0xb35eb000) libz.so.1 => /lib/i386-linux-gnu/libz.so.1 (0xb35d1000) libstdc++.so.6 => /usr/lib/i386-linux-gnu/libstdc++.so.6 (0xb34e8000) libgcc_s.so.1 => /lib/i386-linux-gnu/libgcc_s.so.1 (0xb34cb000) libXi.so.6 => /usr/lib/i386-linux-gnu/libXi.so.6 (0xb34ba000) libXfixes.so.3 => /usr/lib/i386-linux-gnu/libXfixes.so.3 (0xb34b3000) libcairo-gobject.so.2 => /usr/lib/i386-linux-gnu/libcairo-gobject.so.2 (0xb34ac000) libatk-bridge-2.0.so.0 => /usr/lib/i386-linux-gnu/libatk-bridge-2.0.so.0 (0xb3482000) libpangoft2-1.0.so.0 => /usr/lib/i386-linux-gnu/libpangoft2-1.0.so.0 (0xb346c000) libXinerama.so.1 => /usr/lib/i386-linux-gnu/libXinerama.so.1 (0xb3468000) libXrandr.so.2 => /usr/lib/i386-linux-gnu/libXrandr.so.2 (0xb345c000) libXcursor.so.1 => /usr/lib/i386-linux-gnu/libXcursor.so.1 (0xb3451000) libwayland-client.so.0 => /usr/lib/i386-linux-gnu/libwayland-client.so.0 (0xb3445000) libxkbcommon.so.0 => /usr/lib/i386-linux-gnu/libxkbcommon.so.0 (0xb3409000) libwayland-cursor.so.0 => /usr/lib/i386-linux-gnu/libwayland-cursor.so.0 (0xb3400000) libXext.so.6 => /usr/lib/i386-linux-gnu/libXext.so.6 (0xb33ec000) libthai.so.0 => /usr/lib/i386-linux-gnu/libthai.so.0 (0xb33e2000) libpixman-1.so.0 => /usr/lib/i386-linux-gnu/libpixman-1.so.0 (0xb3338000) libxcb-shm.so.0 => /usr/lib/i386-linux-gnu/libxcb-shm.so.0 (0xb3334000) libxcb-render.so.0 => /usr/lib/i386-linux-gnu/libxcb-render.so.0 (0xb332a000) libxcb.so.1 => /usr/lib/i386-linux-gnu/libxcb.so.1 (0xb3307000) librt.so.1 => /lib/i386-linux-gnu/librt.so.1 (0xb32fe000) libffi.so.6 => /usr/lib/i386-linux-gnu/libffi.so.6 (0xb32f7000) liblzma.so.5 => /lib/i386-linux-gnu/liblzma.so.5 (0xb32d1000) libselinux.so.1 => /lib/i386-linux-gnu/libselinux.so.1 (0xb32ae000) libresolv.so.2 => /lib/i386-linux-gnu/libresolv.so.2 (0xb3295000) liborc-0.4.so.0 => /usr/lib/i386-linux-gnu/liborc-0.4.so.0 (0xb3205000) libpcre.so.3 => /lib/i386-linux-gnu/libpcre.so.3 (0xb31c7000) libgpgme-pthread.so.11 => /usr/lib/i386-linux-gnu/libgpgme-pthread.so.11 (0xb318f000) libnettle.so.4 => /usr/lib/i386-linux-gnu/libnettle.so.4 (0xb315b000) libattr.so.1 => /lib/i386-linux-gnu/libattr.so.1 (0xb3155000) liblzo2.so.2 => /lib/i386-linux-gnu/liblzo2.so.2 (0xb3132000) libbz2.so.1.0 => /lib/i386-linux-gnu/libbz2.so.1.0 (0xb3120000) libcgmanager.so.0 => /lib/i386-linux-gnu/libcgmanager.so.0 (0xb3103000) libnih.so.1 => /lib/i386-linux-gnu/libnih.so.1 (0xb30e9000) libnih-dbus.so.1 => /lib/i386-linux-gnu/libnih-dbus.so.1 (0xb30df000) libdbus-1.so.3 => /lib/i386-linux-gnu/libdbus-1.so.3 (0xb3094000) libgraphite2.so.3 => /usr/lib/i386-linux-gnu/libgraphite2.so.3 (0xb3078000) libdbus-glib-1.so.2 => /usr/lib/i386-linux-gnu/libdbus-glib-1.so.2 (0xb3052000) libgcrypt.so.11 => /lib/i386-linux-gnu/libgcrypt.so.11 (0xb2fcb000) libnvidia-tls.so.331.38 => /usr/lib/nvidia-331-updates/tls/libnvidia-tls.so.331.38 (0xb2fc7000) libnvidia-glcore.so.331.38 => /usr/lib/nvidia-331-updates/libnvidia-glcore.so.331.38 (0xb0d83000) libexpat.so.1 => /lib/i386-linux-gnu/libexpat.so.1 (0xb0d5a000) libicudata.so.52 => /usr/lib/i386-linux-gnu/libicudata.so.52 (0xaf6ec000) libSM.so.6 => /usr/lib/i386-linux-gnu/libSM.so.6 (0xaf6e3000) libICE.so.6 => /usr/lib/i386-linux-gnu/libICE.so.6 (0xaf6c9000) libatspi.so.0 => /usr/lib/i386-linux-gnu/libatspi.so.0 (0xaf69f000) libdatrie.so.1 => /usr/lib/i386-linux-gnu/libdatrie.so.1 (0xaf695000) libXau.so.6 => /usr/lib/i386-linux-gnu/libXau.so.6 (0xaf691000) libXdmcp.so.6 => /usr/lib/i386-linux-gnu/libXdmcp.so.6 (0xaf68a000) libassuan.so.0 => /usr/lib/i386-linux-gnu/libassuan.so.0 (0xaf678000) libgpg-error.so.0 => /lib/i386-linux-gnu/libgpg-error.so.0 (0xaf673000) libuuid.so.1 => /lib/i386-linux-gnu/libuuid.so.1 (0xaf66c000) jtome@revo:~$ which rhythmbox /usr/bin/rhythmbox