GNOME: Difference between revisions

Revision as of 02:26, 18 January 2020

GNOME

GNOME (/(ɡ)noʊm/) is a desktop environment that aims to be simple and easy to use. It is designed by The GNOME Project and is composed entirely of free and open-source software. GNOME is a part of the GNU Project.

Install GNOME

To use GNOME, add this to your configuration.nix:

services.xserver.enable = true;
services.xserver.displayManager.gdm.enable = true;
services.xserver.desktopManager.gnome3.enable = true;

Running ancient applications

Long ago, in the GNOME 2 era, applications used GConf service to store configuration. This has been deprecated for many years but some applications were abandoned before they managed to upgrade to a newer dconf system. If you are running such application and getting an error like:

GLib.GException: Failed to contact configuration server; the most common cause is a missing or misconfigured D-Bus session bus daemon. See http://projects.gnome.org/gconf/ for information

you need to add gnome2.GConf to the list of dbus packages in your configuration.nix:

services.dbus.packages = with pkgs; [ gnome2.GConf ];

After applying the update one also has restart their desktop session to refresh the user-specific dbus session.

Running GNOME programs outside of GNOME

While we are packaging GNOME platform-based applications to be largely [self-contained https://nixos.org/nixpkgs/manual/#sec-language-gnome], they still depend, for one reason or another, on some global configuration. The gnome.nix module sets all the necessary options for you but if you are running customized set-up, you might need to replicate that yourself.

For instance, if you see the following error:

 dconf-WARNING **: failed to commit changes to dconf: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name ca.desrt.dconf was not provided by any .service files

you should enable dconf module:

programs.dconf.enable = true;

Many applications rely heavily on having an icon theme available, GNOME’s Adwaita is a good choice but most recent icon themes should work as well.

environment.systemPackages = [ gnome3.adwaita-icon-theme ];

@@ Line 13: / Line 13: @@
 </syntaxHighlight>
-=== Applications fails to start because dconf/gconf is missing ===
+=== Running ancient applications ===
-If you are getting an error like:
+Long ago, in the GNOME 2 era, applications used GConf service to store configuration. This has been deprecated for many years but some applications were abandoned before they managed to upgrade to a newer dconf system. If you are running such application and getting an error like:
 <syntaxHighlight>
@@ Line 21: / Line 21: @@
 </syntaxHighlight>
-when running GNOME applications you need to add {{ic|gconf}} to the list of dbus packages in your configuration.nix.
+you need to add {{ic|gnome2.GConf}} to the list of dbus packages in your {{ic|configuration.nix}}:
-In GNOME 3 GConf was replaced by dconf. For simplicity you can just add both:
 <syntaxHighlight lang=nix>
-services.dbus.packages = with pkgs; [ gnome3.dconf gnome2.GConf ];
+services.dbus.packages = with pkgs; [ gnome2.GConf ];
 </syntaxHighlight>
 After applying the update one also has restart their desktop session to refresh the user-specific dbus session.
+=== Running GNOME programs outside of GNOME ===
+While we are packaging GNOME platform-based applications to be largely [self-contained https://nixos.org/nixpkgs/manual/#sec-language-gnome], they still depend, for one reason or another, on some global configuration. The {{ic|gnome.nix}} module sets all the necessary options for you but if you are running customized set-up, you might need to replicate that yourself.
+For instance, if you see the following error:
+<syntaxHighlight>
+ dconf-WARNING **: failed to commit changes to dconf: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name ca.desrt.dconf was not provided by any .service files
+</syntaxHighlight>
+you should enable dconf module:
+<syntaxHighlight lang=nix>
+programs.dconf.enable = true;
+</syntaxHighlight>
+Many applications rely heavily on having an icon theme available, GNOME’s Adwaita is a good choice but most recent icon themes should work as well.
+<syntaxHighlight lang=nix>
+environment.systemPackages = [ gnome3.adwaita-icon-theme ];
+</syntaxHighlight>