/usr/bin/startxfce4: Starting X server X.Org X Server 1.19.2 Release Date: 2017-03-02 X Protocol Version 11, Revision 0 Build Operating System: Linux 4.9.16-gentoo x86_64 Gentoo Current Operating System: Linux indigo 4.9.16-gentoo #7 SMP Wed Apr 5 22:15:17 MSK 2017 x86_64 Kernel command line: root=PARTUUID=53af00c0-49c2-4755-9ffc-ac74b6a62461 Build Date: 05 April 2017 10:27:21PM Current version of pixman: 0.34.0 Before reporting problems, check http://wiki.x.org to make sure that you have the latest version. Markers: (--) probed, (**) from config file, (==) default setting, (++) from command line, (!!) notice, (II) informational, (WW) warning, (EE) error, (NI) not implemented, (??) unknown. (==) Log file: "/var/log/Xorg.0.log", Time: Wed Apr 5 23:20:57 2017 (==) Using config directory: "/etc/X11/xorg.conf.d" (==) Using system config directory "/usr/share/X11/xorg.conf.d" xfce4-session: No GPG agent found (xfsettingsd:2630): libupower-glib-WARNING **: Couldn't connect to proxy: Could not connect: No such file or directory ** (xfdesktop:2620): WARNING **: Thumbnailer failed calling GetFlavors (xfdesktop:2620): GVFS-RemoteVolumeMonitor-WARNING **: remote volume monitor with dbus name org.gtk.vfs.UDisks2VolumeMonitor is not supported (polkit-gnome-authentication-agent-1:2624): polkit-gnome-1-WARNING **: Error getting authority: Error initializing authority: Could not connect: No such file or directory (xfce4-panel:2619): Gtk-CRITICAL **: IA__gtk_widget_show: assertion 'GTK_IS_WIDGET (widget)' failed (xfce4-panel:2619): Gtk-CRITICAL **: gtk_box_pack: assertion 'GTK_IS_WIDGET (child)' failed (xfce4-panel:2619): Gtk-CRITICAL **: IA__gtk_widget_show: assertion 'GTK_IS_WIDGET (widget)' failed (xfce4-panel:2619): Gtk-CRITICAL **: gtk_box_pack: assertion 'GTK_IS_WIDGET (child)' failed (xfce4-panel:2619): Gtk-CRITICAL **: IA__gtk_widget_show: assertion 'GTK_IS_WIDGET (widget)' failed (xfce4-panel:2619): Gtk-CRITICAL **: gtk_box_pack: assertion 'GTK_IS_WIDGET (child)' failed (xfce4-session:2606): GLib-WARNING **: GError set over the top of a previous GError or uninitialized memory. This indicates a bug in someone's code. You must ensure an error is NULL before it's set. The overwriting error message was: Failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory (xfce4-session:2606): Gtk-CRITICAL **: IA__gtk_widget_set_visible: assertion 'GTK_IS_WIDGET (widget)' failed (xfce4-session:2606): GLib-GObject-CRITICAL **: g_object_unref: assertion 'G_IS_OBJECT (object)' failed xinit: connection to X server lost waiting for X server to shut down xscreensaver: 23:21:05: SIGHUP received: restarting... xscreensaver: 23:21:05: running as user/user (1000/1000) xfdesktop: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.0. xscreensaver: 23:21:06: Can't open display: :0.0 xscreensaver: 23:21:06: running as user/user (1000/1000) xscreensaver: 23:21:06: Errors at startup are usually authorization problems. But you're not logging in as root (good!) so something else must be wrong. Did you read the manual and the FAQ? https://www.jwz.org/xscreensaver/faq.html https://www.jwz.org/xscreensaver/man.html .(II) Server terminated successfully (0). Closing log file.