GNOME: Difference between revisions

To use the GNOME desktop environment on NixOS, the following configuration options must be set:

}|name=/etc/nixos/configuration.nix|lang=nix}}

 

Despite the options in NixOS versions before 25.11 being under the <code>xserver</code> module, GNOME uses [[Wayland]] by default. NixOS 25.11 and later removes support for the [[Xorg]] session entirely (though Xwayland is still included and supported for compatibility).

}|name=~/.config/home-manager/home.nix|lang=nix}}Thus the settings attribute accepts an attribute set whose keys are schemas with each schema's value being a nested attribute set of the schema's keys with their appropriate GVariant value.{{Note|Schemas in Nix are written without leading and trailing slashes. In addition, since dconf have more data types than the Nix language (for example, tuples), in some cases you'll need to convert Nix value to a GVariant value. You can achieve that by using the functions defined under <code>lib.gvariant</code>, they're documented [https://nixos.org/manual/nixpkgs/stable/#sec-functions-library-gvariant here].}}If you wish to revert all dconf settings back to their default state (reset GNOME essentially) then use the following command which  resets all schemas directories available on your system, note that this will affect all programs that use dconf, including GNOME apps and extensions.<syntaxhighlight lang="bash">

=== GNOME Qt integration ===

Using the following example configuration, Qt applications will have a look similar to the adwaita style used by GNOME using a dark theme.

=== Experimental settings ===

GNOME has a number of experimental settings for features not fully completed and thus hidden from the user. As of GNOME 48, these are the experimental features you may want to use:

             "scale-monitor-framebuffer" # Enables fractional scaling (125% 150% 175%)

             "variable-refresh-rate" # Enables Variable Refresh Rate (VRR) on compatible displays

            "xwayland-native-scaling" # Scales Xwayland applications to look crisp on HiDPI screens

If you wish to discover the corresponding dconf entry for a given setting in a program, you can run `dconf watch /` inside of a terminal and change the setting graphically. For example, when changing toggling the Quick-Settings option "Dark Style" from "on" to "off" and back to "on," this will be the output:<syntaxhighlight lang="shell-session">

GNOME does not currently support system tray icons. However, Ubuntu has created an [https://extensions.gnome.org/extension/615/appindicator-support/ extension] that implements this in the top bar. You can install this extension with the following in NixOS:

   environment.systemPackages = [ pkgs.gnomeExtensions.appindicator ];

  services.udev.packages = [ pkgs.gnome-settings-daemon ];

}|name=/etc/nixos/configuration.nix|lang=nix}}

  services.sysprof.enable = true;

  hardware.sensor.iio.enable = true;

  environment.gnome.excludePackages = with pkgs; [

  ];

</nowiki>}}

This occurs when installing GNOME from an existing NixOS installation that used a different desktop environment that modified dconf (most likely switching from KDE to GNOME). To easily fix this: reset all dconf settings.<syntaxhighlight lang="bash">

As a potential workaround<ref>https://github.com/NixOS/nixpkgs/issues/103746#issuecomment-945091229</ref> for automatic login, include this in your NixOS configuration:

   services.xserver.displayManager.autoLogin.enable = true;

   services.xserver.displayManager.autoLogin.user = "account";

  systemd.services."autovt@tty1".enable = false;