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Arch Linux Forums

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Niri - environment / Applications & Desktop Environments
Andree4711 · 2026-06-24 · via Arch Linux Forums

Hi, ich benutze zur Zeit Niri und Noctalia, bin damit auch sehr zufrieden (denn das ständige Fenster hin und her schieben fällt komplett weck).
Das einzige das zur Zeit nervt sind die "environment" Variablen. Dazu habe ich nirgends was vernünftiges gefunden. Jeder macht sein eigenes Ding.
Bei Noctalia kann man lesen wie man "QT_QPA_PLATFORMTHEME" konfigurieren sollte.
Ich habe mit den werten "qt6ct" , "gtk3" und "kde" experimentiert und bei jeder Einstellung andere Ergebnisse bei dem Programm "kate" bekommen.
Wenn ich bei "kate" datei Öfnen anwende bekomme ich unter "gtk3" ein Datei Fenster im Gnome Type. 
Bei "qt6ct" bekomme ich den normalen KDE Fenster Type allerdings ohne das gewählte Theme.
Nutze ich hingegen den Wert "KDE", habe ich das Fenster im KDE Type und zudem noch das richtige Theme.
Zu dem Wert "KDE" kann ich absolut nichts finden, diesen Wert habe ich mal bei irgend einem YouTube'r ab geschaut.

Den folgenden Wert habe ich mir ebenfalls ab geschaut und nutze ihn ohne zu wissen ob es überhaupt Sinn macht.
QT_QPA_PLATFORMTHEME_QT6 "gtk3"

Das sind zur Zeit meine Einstellungen bei "niri". Es wäre schön wenn jemand mehr über Variable unter "niri" weiß.
Weiter unten habe ich noch einen Test mit dem Programm "ventoygui" über 6 Punkte gemacht.
Wenn man vor "ventoy" das prg. "gparted" startet geht Ventoy, ansonsten allerdings nicht.

#-----------------------------
environment {
    DISPLAY ":1"  // JDownloader2 braucht Display=":1" mit ":0" startet er nicht
    ELECTRON_OZONE_PLATFORM_HINT "auto"
    QT_QPA_PLATFORM "wayland"
    //QT_QPA_PLATFORMTHEME "qt6ct"
    //QT_QPA_PLATFORMTHEME "gtk3"
    QT_QPA_PLATFORMTHEME "kde"
    QT_QPA_PLATFORMTHEME_QT6 "gtk3"
    QT_WAYLAND_DISABLE_WINDOWDECORATION "1"
    XDG_SESSION_TYPE "wayland"
    XDG_CURRENT_DESKTOP "niri"
    WAYLAND_DISPLAY "wayland-1"
    //           //
    // JAVA var. wird für JDownloader zur Zeit benoetigt  - - - by Vengan
    JAVA_HOME "/usr/lib/jvm/default"
    _JAVA_AWT_WM_NONREPARENTING "1"
    //           //
    //  test     //
    GTK_IM_MODULE "simple"
    //  GTK_IM_MODULE "fcitx"
    //  QT_IM_MODULE "fcitx"
    //  XMODIFIERS "@im=fcitx"
}
#-------------------------------

1   -   start ventoygui - ventoy startet nicht
------  ❯ ventoygui&
------  [1] 30523
------  ❯ Authorization required, but no authorization protocol specified
------  (Ventoy2Disk.gtk3:30526): Gtk-WARNING **: 17:36:30.255: cannot open display: :1
------  [1]  + 30523 exit 1     ventoygui
2   -   start gparted - gparted startet
------  ❯ gparted&
------  [1] 30552
------  localuser:root being added to access control list                                                                                                                                                                                                         
------  ❯ GParted 1.8.1
------  configuration --enable-libparted-dmraid
------  ❯
3   -   start ventoygui - ventoy startet
------  ❯ ventoygui&
------ [2] 31363
------ ❯
------ (Ventoy2Disk.gtk3:31366): IBUS-WARNING **: 17:37:04.826: The owner of /home/vengan/.config/ibus/bus is not root!
------
------ (Ventoy2Disk.gtk3:31366): Gtk-CRITICAL **: 17:37:04.828: gtk_widget_grab_default: assertion 'gtk_widget_get_can_default (widget)' failed
------
------ (Ventoy2Disk.gtk3:31366): Gtk-CRITICAL **: 17:37:04.828: gtk_widget_grab_default: assertion 'gtk_widget_get_can_default (widget)' failed
------
------ (Ventoy2Disk.gtk3:31366): Gtk-WARNING **: 17:37:04.872: Could not load a pixbuf from icon theme.
------ This may indicate that pixbuf loaders or the mime database could not be found.
------  ❯
4   -  close gparted
------  ❯ gparted&localuser:root being removed from access control list
------ [1]  - 30552 done       gparted
5   -  close ventoy
------ [2]  + 31363 done       ventoygui
------ ❯
6   -   start ventoygui - ventoy startet nicht
------ ❯ ventoygui&
------ [1] 32582
------ ❯ Authorization required, but no authorization protocol specified
------ (Ventoy2Disk.gtk3:32585): Gtk-WARNING **: 17:54:40.481: cannot open display: :1
------ [1]  + 32582 exit 1     ventoygui
------ ❯