I get this in my terminal. Normally when I start my system, nautilus crashes after a few minutes. Ubuntu 16.04. System: Dell Inspiron 14 3000 Series
(nautilus:24185): Gtk-WARNING **: (/build/gtk+3.0-_oCaBb/gtk+3.0-3.20.6/./gtk/gtkicontheme.c:5481):gtk_icon_theme_lookup_by_gicon_for_scale: runtime check failed: ((flags & GTK_ICON_LOOKUP_GENERIC_FALLBACK) == 0)
(nautilus:24185): Gtk-WARNING **: (/build/gtk+3.0-_oCaBb/gtk+3.0-3.20.6/./gtk/gtkicontheme.c:5481):gtk_icon_theme_lookup_by_gicon_for_scale: runtime check failed: ((flags & GTK_ICON_LOOKUP_GENERIC_FALLBACK) == 0)
(nautilus:24185): Gtk-WARNING **: (/build/gtk+3.0-_oCaBb/gtk+3.0-3.20.6/./gtk/gtkicontheme.c:2226):gtk_icon_theme_choose_icon_for_scale: runtime check failed: ((flags & GTK_ICON_LOOKUP_GENERIC_FALLBACK) == 0)
(nautilus:24185): Gtk-WARNING **: (/build/gtk+3.0-_oCaBb/gtk+3.0-3.20.6/./gtk/gtkicontheme.c:5481):gtk_icon_theme_lookup_by_gicon_for_scale: runtime check failed: ((flags & GTK_ICON_LOOKUP_GENERIC_FALLBACK) == 0)
(nautilus:24185): Gtk-WARNING **: (/build/gtk+3.0-_oCaBb/gtk+3.0-3.20.6/./gtk/gtkicontheme.c:2226):gtk_icon_theme_choose_icon_for_scale: runtime check failed: ((flags & GTK_ICON_LOOKUP_GENERIC_FALLBACK) == 0)
(nautilus:24185): Gtk-WARNING **: (/build/gtk+3.0-_oCaBb/gtk+3.0-3.20.6/./gtk/gtkicontheme.c:5481):gtk_icon_theme_lookup_by_gicon_for_scale: runtime check failed: ((flags & GTK_ICON_LOOKUP_GENERIC_FALLBACK) == 0)
(nautilus:24185): Gtk-WARNING **: (/build/gtk+3.0-_oCaBb/gtk+3.0-3.20.6/./gtk/gtkicontheme.c:5481):gtk_icon_theme_lookup_by_gicon_for_scale: runtime check failed: ((flags & GTK_ICON_LOOKUP_GENERIC_FALLBACK) == 0)
(nautilus:24185): Gtk-WARNING **: (/build/gtk+3.0-_oCaBb/gtk+3.0-3.20.6/./gtk/gtkicontheme.c:2226):gtk_icon_theme_choose_icon_for_scale: runtime check failed: ((flags & GTK_ICON_LOOKUP_GENERIC_FALLBACK) == 0)
(nautilus:24185): Gtk-WARNING **: (/build/gtk+3.0-_oCaBb/gtk+3.0-3.20.6/./gtk/gtkicontheme.c:5481):gtk_icon_theme_lookup_by_gicon_for_scale: runtime check failed: ((flags & GTK_ICON_LOOKUP_GENERIC_FALLBACK) == 0)
(nautilus:24185): Gtk-WARNING **: (/build/gtk+3.0-_oCaBb/gtk+3.0-3.20.6/./gtk/gtkicontheme.c:2226):gtk_icon_theme_choose_icon_for_scale: runtime check failed: ((flags & GTK_ICON_LOOKUP_GENERIC_FALLBACK) == 0)
(nautilus:24185): Gtk-WARNING **: (/build/gtk+3.0-_oCaBb/gtk+3.0-3.20.6/./gtk/gtkicontheme.c:5481):gtk_icon_theme_lookup_by_gicon_for_scale: runtime check failed: ((flags & GTK_ICON_LOOKUP_GENERIC_FALLBACK) == 0)
(nautilus:24185): Gtk-WARNING **: (/build/gtk+3.0-_oCaBb/gtk+3.0-3.20.6/./gtk/gtkicontheme.c:5481):gtk_icon_theme_lookup_by_gicon_for_scale: runtime check failed: ((flags & GTK_ICON_LOOKUP_GENERIC_FALLBACK) == 0)
(nautilus:24185): Gtk-WARNING **: (/build/gtk+3.0-_oCaBb/gtk+3.0-3.20.6/./gtk/gtkicontheme.c:2226):gtk_icon_theme_choose_icon_for_scale: runtime check failed: ((flags & GTK_ICON_LOOKUP_GENERIC_FALLBACK) == 0)
(nautilus:24185): Gtk-WARNING **: (/build/gtk+3.0-_oCaBb/gtk+3.0-3.20.6/./gtk/gtkicontheme.c:5481):gtk_icon_theme_lookup_by_gicon_for_scale: runtime check failed: ((flags & GTK_ICON_LOOKUP_GENERIC_FALLBACK) == 0)
(nautilus:24185): Gtk-WARNING **: (/build/gtk+3.0-_oCaBb/gtk+3.0-3.20.6/./gtk/gtkicontheme.c:2226):gtk_icon_theme_choose_icon_for_scale: runtime check failed: ((flags & GTK_ICON_LOOKUP_GENERIC_FALLBACK) == 0)
(nautilus:24185): Gtk-WARNING **: (/build/gtk+3.0-_oCaBb/gtk+3.0-3.20.6/./gtk/gtkicontheme.c:5481):gtk_icon_theme_lookup_by_gicon_for_scale: runtime check failed: ((flags & GTK_ICON_LOOKUP_GENERIC_FALLBACK) == 0)
(nautilus:24185): Gtk-WARNING **: (/build/gtk+3.0-_oCaBb/gtk+3.0-3.20.6/./gtk/gtkicontheme.c:5481):gtk_icon_theme_lookup_by_gicon_for_scale: runtime check failed: ((flags & GTK_ICON_LOOKUP_GENERIC_FALLBACK) == 0)
(nautilus:24185): Gtk-WARNING **: (/build/gtk+3.0-_oCaBb/gtk+3.0-3.20.6/./gtk/gtkicontheme.c:2226):gtk_icon_theme_choose_icon_for_scale: runtime check failed: ((flags & GTK_ICON_LOOKUP_GENERIC_FALLBACK) == 0)
(nautilus:24185): Gtk-WARNING **: (/build/gtk+3.0-_oCaBb/gtk+3.0-3.20.6/./gtk/gtkicontheme.c:5481):gtk_icon_theme_lookup_by_gicon_for_scale: runtime check failed: ((flags & GTK_ICON_LOOKUP_GENERIC_FALLBACK) == 0)
(nautilus:24185): Gtk-WARNING **: (/build/gtk+3.0-_oCaBb/gtk+3.0-3.20.6/./gtk/gtkicontheme.c:2226):gtk_icon_theme_choose_icon_for_scale: runtime check failed: ((flags & GTK_ICON_LOOKUP_GENERIC_FALLBACK) == 0)
(nautilus:24185): Gdk-ERROR **: The program 'nautilus' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadDrawable (invalid Pixmap or Window parameter)'.
(Details: serial 37259 error_code 9 request_code 53 (core protocol) minor_code 0)
(Note to programmers: normally, X errors are reported asynchronously;
that is, you will receive the error a while after causing it.
To debug your program, run it with the GDK_SYNCHRONIZE environment
variable to change this behavior. You can then get a meaningful
backtrace from your debugger if you break on the gdk_x_error() function.)
Trace/breakpoint trap (core dumped)
