[Nix-dev] Problem setting a systemd service using dbus

[Tony]

Hi!
Try looking at :
nixos/modules/services/hardware/bluetooth.nix in the nixpkgs repo on github.
You need the type dbus and the org.something bus name in your code.

Hope that helps.

Kind regards,
Tony

---- Eric Sagnes wrote ----

>Hi,
>
>I am having trouble setting a systemd service for a program that requires dbus.
>At first it complained that it couldn't find `dbus-launch`, but adding `pkgs.dbus_daemon` to the service `path` fixed that.
>But now it is complaining that DBUS_SESSION_BUS_ADDRESS is not set and that X11 is not initialized (the last line).
>
>```
>1月 30 16:34:54 alpha fcitx[14131]: (WARN-14131 /tmp/nix-build-fcitx-4.2.9.drv-0/fcitx-4.2.9/src/module/dbus/dbusstuff.c:188) Without DISPLAY or DBUS_SESSION_BUS_ADDRESS session bus will not work
>1月 30 16:34:54 alpha fcitx[14131]: (ERROR-14131 /tmp/nix-build-fcitx-4.2.9.drv-0/fcitx-4.2.9/src/module/notificationitem/notificationitem.c:187) DBus Not initialized
>1月 30 16:44:15 alpha fcitx[14131]: (ERROR-14131 /tmp/nix-build-fcitx-4.2.9.drv-0/fcitx-4.2.9/src/ui/kimpanel/kimpanel.c:317) DBus Not initialized
>1月 30 16:44:15 alpha fcitx[14131]: (ERROR-14131 /tmp/nix-build-fcitx-4.2.9.drv-0/fcitx-4.2.9/src/lib/fcitx/ui.c:165) no usable user interface.
>1月 30 16:44:15 alpha fcitx[14131]: (FATAL-14131 /tmp/nix-build-fcitx-4.2.9.drv-0/fcitx-4.2.9/src/frontend/xim/xim.c:134) X11が初期化されていません
>```
>
>Here the unit relevant settings:
>
>```
>  path        = [ pkgs.dbus_daemon ];
>  after       = [ "display-manager.service" ];
>  wantedBy    = [ "graphical.target" ];
>```
>
>The unit is loaded and active but the program is not appearing in the systray as it should, probably because it cannot find X11 and dbus.
>
>Does someone knows how to address this problem?
>
>-- 
>Eric Sagnes
>サニエ エリック
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