On Wed, 2019-02-20 at 17:58 +1030, Tim wrote:
> Allegedly, on or about 19 February 2019, Howard Howell sent:
> > I did a clean install of F28.
>
> After a new install, you may need to horse around with the firewall,
> so
> that the printer is automatically found by the system. Look for an
> IPP
> (internet printing protocol) checkbox, and tick the client option if
> you're printing over the network to a printer (you'd tick the server
> checkbox if this computer was serving its directly connected printer
> to
> the rest of the LAN).
>
> CUPS uses IPP. And there's another service, cups-browsed that needs
> to
> be running for it to find printers (start it going, and set it to
> always be enabled).
>
> systemctl start cups-browsed
> systemctl enable cups-browsed
>
> For other printer-related networking protocols, look through the rest
> of the protocols list in the firewall. e.g. You may need to tick
> mdns
> if it's involved in finding the printer.
>
That didn't go well at all.... I dnf installed system-config-firewall
and invoked it as sudo system-config-firewall:
No protocol specified
/usr/lib64/python2.7/site-packages/gtk-2.0/gtk/__init__.py:57:
GtkWarning: could not open display
warnings.warn(str(e), _gtk.Warning)
/usr/share/system-config-firewall/fw_gui.py:51: GtkWarning:
IA__gtk_icon_theme_get_for_screen: assertion 'GDK_IS_SCREEN (screen)'
failed
icon_theme = gtk.icon_theme_get_default()
/usr/share/system-config-firewall/fw_gui.py:61: Warning: invalid (NULL)
pointer instance
xml = gtk.glade.XML(DATADIR + "/" + GLADE_NAME, domain=DOMAIN)
/usr/share/system-config-firewall/fw_gui.py:61: Warning:
g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)'
failed
xml = gtk.glade.XML(DATADIR + "/" + GLADE_NAME, domain=DOMAIN)
/usr/share/system-config-firewall/fw_gui.py:61: GtkWarning:
IA__gtk_settings_get_for_screen: assertion 'GDK_IS_SCREEN (screen)'
failed
xml = gtk.glade.XML(DATADIR + "/" + GLADE_NAME, domain=DOMAIN)
/usr/share/system-config-firewall/fw_gui.py:61: Warning: g_object_get:
assertion 'G_IS_OBJECT (object)' failed
xml = gtk.glade.XML(DATADIR + "/" + GLADE_NAME, domain=DOMAIN)
/usr/share/system-config-firewall/fw_gui.py:61: Warning: value "TRUE"
of type 'gboolean' is invalid or out of range for property 'visible' of
type 'gboolean'
xml = gtk.glade.XML(DATADIR + "/" + GLADE_NAME, domain=DOMAIN)
/usr/share/system-config-firewall/fw_gui.py:61: GtkWarning:
IA__gdk_screen_get_display: assertion 'GDK_IS_SCREEN (screen)' failed
xml = gtk.glade.XML(DATADIR + "/" + GLADE_NAME, domain=DOMAIN)
/usr/share/system-config-firewall/fw_gui.py:61: Warning: g_object_ref:
assertion 'G_IS_OBJECT (object)' failed
xml = gtk.glade.XML(DATADIR + "/" + GLADE_NAME, domain=DOMAIN)
/usr/share/system-config-firewall/fw_gui.py:61: GtkWarning:
IA__gdk_pango_context_get_for_screen: assertion 'GDK_IS_SCREEN
(screen)' failed
xml = gtk.glade.XML(DATADIR + "/" + GLADE_NAME, domain=DOMAIN)
/usr/share/system-config-firewall/fw_gui.py:61: PangoWarning:
pango_context_set_font_description: assertion 'context != NULL' failed
xml = gtk.glade.XML(DATADIR + "/" + GLADE_NAME, domain=DOMAIN)
/usr/share/system-config-firewall/fw_gui.py:61: PangoWarning:
pango_context_set_base_dir: assertion 'context != NULL' failed
xml = gtk.glade.XML(DATADIR + "/" + GLADE_NAME, domain=DOMAIN)
/usr/share/system-config-firewall/fw_gui.py:61: PangoWarning:
pango_context_set_language: assertion 'context != NULL' failed
xml = gtk.glade.XML(DATADIR + "/" + GLADE_NAME, domain=DOMAIN)
/usr/share/system-config-firewall/fw_gui.py:61: PangoWarning:
pango_layout_new: assertion 'context != NULL' failed
xml = gtk.glade.XML(DATADIR + "/" + GLADE_NAME, domain=DOMAIN)
/usr/share/system-config-firewall/fw_gui.py:61: PangoWarning:
pango_layout_set_attributes: assertion 'layout != NULL' failed
xml = gtk.glade.XML(DATADIR + "/" + GLADE_NAME, domain=DOMAIN)
/usr/share/system-config-firewall/fw_gui.py:61: PangoWarning:
pango_layout_set_text: assertion 'layout != NULL' failed
xml = gtk.glade.XML(DATADIR + "/" + GLADE_NAME, domain=DOMAIN)
/usr/share/system-config-firewall/fw_gui.py:61: PangoWarning:
pango_layout_get_unknown_glyphs_count: assertion 'PANGO_IS_LAYOUT
(layout)' failed
xml = gtk.glade.XML(DATADIR + "/" + GLADE_NAME, domain=DOMAIN)
/usr/share/system-config-firewall/fw_gui.py:61: Warning:
g_object_unref: assertion 'G_IS_OBJECT (object)' failed
xml = gtk.glade.XML(DATADIR + "/" + GLADE_NAME, domain=DOMAIN)
/usr/share/system-config-firewall/fw_gui.py:61: GtkWarning:
IA__gdk_cursor_new_for_display: assertion 'GDK_IS_DISPLAY (display)'
failed
xml = gtk.glade.XML(DATADIR + "/" + GLADE_NAME, domain=DOMAIN)
/usr/share/system-config-firewall/fw_gui.py:61: PangoWarning:
pango_layout_set_single_paragraph_mode: assertion 'PANGO_IS_LAYOUT
(layout)' failed
xml = gtk.glade.XML(DATADIR + "/" + GLADE_NAME, domain=DOMAIN)
/usr/share/system-config-firewall/fw_gui.py:61: PangoWarning:
pango_layout_set_ellipsize: assertion 'PANGO_IS_LAYOUT (layout)' failed
xml = gtk.glade.XML(DATADIR + "/" + GLADE_NAME, domain=DOMAIN)
/usr/share/system-config-firewall/fw_gui.py:61: PangoWarning:
pango_layout_set_width: assertion 'layout != NULL' failed
xml = gtk.glade.XML(DATADIR + "/" + GLADE_NAME, domain=DOMAIN)
/usr/share/system-config-firewall/fw_gui.py:61: PangoWarning:
pango_layout_set_wrap: assertion 'PANGO_IS_LAYOUT (layout)' failed
xml = gtk.glade.XML(DATADIR + "/" + GLADE_NAME, domain=DOMAIN)
/usr/share/system-config-firewall/fw_gui.py:61: PangoWarning:
pango_layout_set_alignment: assertion 'layout != NULL' failed
xml = gtk.glade.XML(DATADIR + "/" + GLADE_NAME, domain=DOMAIN)
/usr/share/system-config-firewall/fw_gui.py:61: PangoWarning:
pango_layout_get_pixel_extents: assertion 'PANGO_IS_LAYOUT (layout)'
failed
xml = gtk.glade.XML(DATADIR + "/" + GLADE_NAME, domain=DOMAIN)
/usr/share/system-config-firewall/fw_gui.py:61: GtkWarning:
IA__gtk_icon_theme_get_for_screen: assertion 'GDK_IS_SCREEN (screen)'
failed
xml = gtk.glade.XML(DATADIR + "/" + GLADE_NAME, domain=DOMAIN)
/usr/share/system-config-firewall/fw_gui.py:61: GtkWarning:
IA__gtk_icon_size_lookup_for_settings: assertion 'GTK_IS_SETTINGS
(settings)' failed
xml = gtk.glade.XML(DATADIR + "/" + GLADE_NAME, domain=DOMAIN)
/usr/share/system-config-firewall/fw_gui.py:61: GtkWarning: Invalid
icon size 1
xml = gtk.glade.XML(DATADIR + "/" + GLADE_NAME, domain=DOMAIN)
/usr/share/system-config-firewall/fw_gui.py:61: GtkWarning:
IA__gtk_icon_theme_load_icon: assertion 'GTK_IS_ICON_THEME
(icon_theme)' failed
xml = gtk.glade.XML(DATADIR + "/" + GLADE_NAME, domain=DOMAIN)
/usr/share/system-config-firewall/fw_gui.py:61: GtkWarning: Error
loading theme icon 'edit-find' for stock:
xml = gtk.glade.XML(DATADIR + "/" + GLADE_NAME, domain=DOMAIN)
/usr/share/system-config-firewall/fw_gui.py:61: GtkWarning:
gtkstyle.c:2358: invalid icon size '1'
xml = gtk.glade.XML(DATADIR + "/" + GLADE_NAME, domain=DOMAIN)
/usr/share/system-config-firewall/fw_gui.py:61: GtkWarning:
IA__gtk_style_render_icon: assertion 'pixbuf != NULL' failed
xml = gtk.glade.XML(DATADIR + "/" + GLADE_NAME, domain=DOMAIN)
/usr/share/system-config-firewall/fw_gui.py:61: GtkWarning: Error
loading theme icon 'text-x-generic' for stock:
xml = gtk.glade.XML(DATADIR + "/" + GLADE_NAME, domain=DOMAIN)
/usr/share/system-config-firewall/fw_gui.py:61: GtkWarning:
IA__gtk_icon_theme_lookup_by_gicon: assertion 'GTK_IS_ICON_THEME
(icon_theme)' failed
xml = gtk.glade.XML(DATADIR + "/" + GLADE_NAME, domain=DOMAIN)
Traceback (most recent call last):
File "/usr/bin/system-config-firewall", line 36, in <module>
import fw_gui
File "/usr/share/system-config-firewall/fw_gui.py", line 62, in
<module>
icon_theme.append_search_path(DATADIR)
AttributeError: 'NoneType' object has no attribute 'append_search_path'
Did not expect that at all!!!
regards,
Les H
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