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Xfce: Difference between revisions

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Describe xmonad usage with xfce4 desktop enabled
A subsection on how to exclude packages in xfce.
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[http://www.xfce.org Xfce] is a lightweight desktop environment based on GTK+. It includes a window manager, a file manager, desktop and panel.
[http://www.xfce.org Xfce] is a lightweight desktop environment based on GTK+. It includes a window manager, a file manager, desktop and panel.
This article is an extension of the documentation in the [https://nixos.org/manual/nixos/stable/#sec-xfce NixOS manual].


== Enabling ==
== Enabling ==
To use xfce set <code>service.xserver.desktopManager.xfce.enable</code> to <code>true</code>. For example:
To use xfce set <code>services.xserver.desktopManager.xfce.enable</code> to <code>true</code>. For example:
{{file|/etc/nixos/configuration.nix|nix|
{{file|/etc/nixos/configuration.nix|nix|
<nowiki>
<nowiki>
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     enable = true;
     enable = true;
     desktopManager = {
     desktopManager = {
      default = "xfce";
       xterm.enable = false;
       xterm.enable = false;
       xfce.enable = true;
       xfce.enable = true;
     };
     };
   };
   };
  services.displayManager.defaultSession = "xfce";
   ...
   ...
}
}
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}}
}}
{{Evaluate}}
{{Evaluate}}
=== Excluding xfce applications ===
Xfce does not include as many applications by default as some other desktop environments. Still, those can be excluded as demonstrated in the example below. Place this before the <code>services.xserver</code> snippet from above.
{{file|/etc/nixos/configuration.nix|nix|
<nowiki>
{
  environment.xfce.excludePackages = with pkgs.xfce; [
    mousepad
    parole
  # ristretto
    xfce4-appfinder
  # xfce4-notifyd
    xfce4-screenshooter
  # xfce4-session
  # xfce4-settings
  # xfce4-taskmanager
  # xfce4-terminal
  ];
}
</nowiki>
}}


=== Using as a desktop manager and not a window manager ===
=== Using as a desktop manager and not a window manager ===
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     enable = true;   
     enable = true;   
     desktopManager = {
     desktopManager = {
      default = "xfce";
       xterm.enable = false;
       xterm.enable = false;
       xfce = {
       xfce = {
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     windowManager.i3.enable = true;
     windowManager.i3.enable = true;
   };
   };
  services.displayManager.defaultSession = "xfce";
   ...
   ...
}
}
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     enable = true;   
     enable = true;   
     desktopManager = {
     desktopManager = {
      default = "xfce";
       xterm.enable = false;
       xterm.enable = false;
       xfce = {
       xfce = {
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     };
     };
     windowManager = {
     windowManager = {
      default = "xmonad";
       xmonad = {
       xmonad = {
         enable = true;
         enable = true;
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     };
     };
   };
   };
  services.displayManager.defaultSession = "xfce+xmonad";
   ...
   ...
}
}
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{{Evaluate}}
{{Evaluate}}


After choosing the <code>xfce+i3</code> session in your display manager, you will be taken to a clean screen, where you can open a terminal with <code>MOD+Shift+Enter</code> or launch an application with <code>MOD(+SHIFT)+p</code>.
After choosing the <code>xfce+xmonad</code> session in your display manager, you will be taken to a clean screen, where you can open a terminal with <code>MOD+Shift+Enter</code> or launch an application with <code>MOD(+SHIFT)+p</code>.


===== With xfce desktop =====
===== With xfce desktop =====
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After logging in you will be greeted by xfce's desktop which interferes with xmonad. To solve this issue you have to remove the <code>xfdesktop</code> process from being started in the session.
After logging in you will be greeted by xfce's desktop which interferes with xmonad. To solve this issue you have to remove the <code>xfdesktop</code> process from being started in the session.
Open the session manager in the application launcher with <code>MOD(+SHIFT)+p</code> and then typing in "Session and Startup". Go to tab "Session" and set the restart style of <code>xfdesktop</code> to "Never". Kill the process with "Quit program", then "Save session." After this, xfce4 and xmonad work together nicely.
Open the session manager in the application launcher with <code>MOD(+SHIFT)+p</code> and then typing in "Session and Startup". Go to tab "Session" and set the restart style of <code>xfdesktop</code> to "Never". Kill the process with "Quit program", then "Save session." After this, xfce4 and xmonad will work together nicely.
 
===== Java-based GUI applications  =====
 
Java-based applications may not work properly with xmonad. The applications main window may stay blank or gray on startup. This is a known issue with some versions of Java, where xmonad is not recognized as a "non-reparenting" window manager. There are multiple solutions to this problem as described on xmonad's FAQ page.
 
One alternative is to fake xmonad's window manager name, after running the EMWH initialization. This particular approach works well when running xmonad alongside the xfce-based desktop (described above).
 
{{file|~/.xmonad/xmonad.hs|haskell|
<nowiki>
    import XMonad
    import XMonad.Config.Xfce
    import XMonad.Hooks.EwmhDesktops
    import XMonad.Hooks.SetWMName
 
    main = xmonad xfceConfig
            { terminal = "xfce4-terminal"
            , modMask = mod4Mask -- Use Win as MOD key
            , startupHook = ewmhDesktopsStartup >> setWMName "LG3D" -- for some reason the double greater sign is escaped here due to wiki formatting, replace this with proper greater signs!
            }
</nowiki>
}}


===== Additional resources =====
===== Additional resources =====
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[https://wiki.haskell.org/File:Xmbindings.png Haskell Wiki: Xmonad default key bindings]
[https://wiki.haskell.org/File:Xmbindings.png Haskell Wiki: Xmonad default key bindings]
[https://wiki.haskell.org/Xmonad/Frequently_asked_questions#Problems_with_Java_applications.2C_Applet_java_console Haskell Wiki FAQ: Problems with Java applications]


== Troubleshooting ==
== Troubleshooting ==
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If you use pulse audio, set <code>nixpkgs.config.pulseaudio = true</code> as shown above. Otherwise, you may
If you use pulse audio, set <code>nixpkgs.config.pulseaudio = true</code> as shown above. Otherwise, you may
experience glitches like being able to mute the sound card but not unmute it.
experience glitches like being able to mute the sound card but not unmute it.
[[Category:Desktop environment]]
[[Category:NixOS Manual]]
Retrieved from "https://wiki.nixos.org/wiki/Xfce"