diff --git a/3rdparty/qv2ray/v2/proxy/QvProxyConfigurator.cpp b/3rdparty/qv2ray/v2/proxy/QvProxyConfigurator.cpp
index 98fa53a..a1682a7 100644
--- a/3rdparty/qv2ray/v2/proxy/QvProxyConfigurator.cpp
+++ b/3rdparty/qv2ray/v2/proxy/QvProxyConfigurator.cpp
@@ -225,6 +225,18 @@ namespace Qv2ray::components::proxy {
     }
 #endif
 
+#ifdef Q_OS_LINUX
+    QString GetKconfigCmd() {
+        if(qEnvironmentVariable("KDE_SESSION_VERSION") == "5") {
+            return "kwriteconfig5";
+        } else if(qEnvironmentVariable("KDE_SESSION_VERSION") == "6") {
+            return "kwriteconfig6";
+        } else {
+            return "kwriteconfig";
+        }
+    }
+#endif
+
     void SetSystemProxy(int httpPort, int socksPort, QString scheme) {
         const QString &address = "127.0.0.1";
         bool hasHTTP = (httpPort > 0 && httpPort < 65536);
@@ -292,7 +304,7 @@ namespace Qv2ray::components::proxy {
 
                 // for KDE:
                 if (isKDE) {
-                    actions << ProcessArgument{"kwriteconfig5",
+                    actions << ProcessArgument{GetKconfigCmd(),
                                                {"--file", configPath + "/kioslaverc", //
                                                 "--group", "Proxy Settings",          //
                                                 "--key", protocol + "Proxy",          //
@@ -311,7 +323,7 @@ namespace Qv2ray::components::proxy {
 
                 // for KDE:
                 if (isKDE) {
-                    actions << ProcessArgument{"kwriteconfig5",
+                    actions << ProcessArgument{GetKconfigCmd(),
                                                {"--file", configPath + "/kioslaverc", //
                                                 "--group", "Proxy Settings",          //
                                                 "--key", "socksProxy",                //
@@ -328,7 +340,7 @@ namespace Qv2ray::components::proxy {
 
             // for KDE:
             if (isKDE) {
-                actions << ProcessArgument{"kwriteconfig5",
+                actions << ProcessArgument{GetKconfigCmd(),
                                            {"--file", configPath + "/kioslaverc", //
                                             "--group", "Proxy Settings",          //
                                             "--key", "ProxyType", "1"}};
@@ -401,7 +413,7 @@ namespace Qv2ray::components::proxy {
 
             // for KDE:
             if (isKDE) {
-                actions << ProcessArgument{"kwriteconfig5",
+                actions << ProcessArgument{GetKconfigCmd(),
                                            {"--file", configRoot + "/kioslaverc", //
                                             "--group", "Proxy Settings",          //
                                             "--key", "ProxyType", "0"}};
diff --git a/cmake/linux/linux.cmake b/cmake/linux/linux.cmake
index c653a1d..a4dc9f5 100644
--- a/cmake/linux/linux.cmake
+++ b/cmake/linux/linux.cmake
@@ -1,2 +1,2 @@
-set(PLATFORM_SOURCES src/sys/linux/LinuxCap.cpp src/sys/linux/desktopinfo.cpp)
+set(PLATFORM_SOURCES src/sys/linux/LinuxCap.cpp)
 set(PLATFORM_LIBRARIES dl)
diff --git a/include/sys/linux/desktopinfo.h b/include/sys/linux/desktopinfo.h
deleted file mode 100644
index 2daa226..0000000
--- a/include/sys/linux/desktopinfo.h
+++ /dev/null
@@ -1,31 +0,0 @@
-#pragma once
-
-#include <QString>
-
-class DesktopInfo
-{
-public:
-    DesktopInfo();
-
-    enum WM
-    {
-        GNOME,
-        KDE,
-        OTHER,
-        QTILE,
-        SWAY,
-        HYPRLAND
-    };
-
-    bool waylandDetected();
-    WM windowManager();
-
-private:
-    QString XDG_CURRENT_DESKTOP;
-    QString XDG_SESSION_TYPE;
-    QString WAYLAND_DISPLAY;
-    QString KDE_FULL_SESSION;
-    QString GNOME_DESKTOP_SESSION_ID;
-    QString GDMSESSION;
-    QString DESKTOP_SESSION;
-};
diff --git a/src/main.cpp b/src/main.cpp
index b6d4b28..161ed9c 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -22,7 +22,6 @@
 #include <qfontdatabase.h>
 #endif
 #ifdef Q_OS_LINUX
-#include "include/sys/linux/desktopinfo.h"
 #include <qfontdatabase.h>
 #endif
 
diff --git a/src/sys/linux/desktopinfo.cpp b/src/sys/linux/desktopinfo.cpp
deleted file mode 100644
index 7225dd0..0000000
--- a/src/sys/linux/desktopinfo.cpp
+++ /dev/null
@@ -1,54 +0,0 @@
-#include "include/sys/linux/desktopinfo.h"
-#include <QProcessEnvironment>
-
-DesktopInfo::DesktopInfo()
-{
-    auto e = QProcessEnvironment::systemEnvironment();
-    XDG_CURRENT_DESKTOP = e.value(QStringLiteral("XDG_CURRENT_DESKTOP"));
-    XDG_SESSION_TYPE = e.value(QStringLiteral("XDG_SESSION_TYPE"));
-    WAYLAND_DISPLAY = e.value(QStringLiteral("WAYLAND_DISPLAY"));
-    KDE_FULL_SESSION = e.value(QStringLiteral("KDE_FULL_SESSION"));
-    GNOME_DESKTOP_SESSION_ID =
-      e.value(QStringLiteral("GNOME_DESKTOP_SESSION_ID"));
-    DESKTOP_SESSION = e.value(QStringLiteral("DESKTOP_SESSION"));
-}
-
-bool DesktopInfo::waylandDetected()
-{
-    return XDG_SESSION_TYPE == QLatin1String("wayland") ||
-           WAYLAND_DISPLAY.contains(QLatin1String("wayland"),
-                                    Qt::CaseInsensitive);
-}
-
-DesktopInfo::WM DesktopInfo::windowManager()
-{
-    DesktopInfo::WM res = DesktopInfo::OTHER;
-    QStringList desktops = XDG_CURRENT_DESKTOP.split(QChar(':'));
-    for (auto& desktop : desktops) {
-        if (desktop.contains(QLatin1String("GNOME"), Qt::CaseInsensitive)) {
-            return DesktopInfo::GNOME;
-        }
-        if (desktop.contains(QLatin1String("qtile"), Qt::CaseInsensitive)) {
-            return DesktopInfo::QTILE;
-        }
-        if (desktop.contains(QLatin1String("sway"), Qt::CaseInsensitive)) {
-            return DesktopInfo::SWAY;
-        }
-        if (desktop.contains(QLatin1String("Hyprland"), Qt::CaseInsensitive)) {
-            return DesktopInfo::HYPRLAND;
-        }
-        if (desktop.contains(QLatin1String("kde-plasma"))) {
-            return DesktopInfo::KDE;
-        }
-    }
-
-    if (!GNOME_DESKTOP_SESSION_ID.isEmpty()) {
-        return DesktopInfo::GNOME;
-    }
-
-    if (!KDE_FULL_SESSION.isEmpty()) {
-        return DesktopInfo::KDE;
-    }
-
-    return res;
-}
diff --git a/src/ui/mainwindow.cpp b/src/ui/mainwindow.cpp
index d97a1f5..a8b40ec 100644
--- a/src/ui/mainwindow.cpp
+++ b/src/ui/mainwindow.cpp
@@ -26,7 +26,6 @@
 #else
 #ifdef Q_OS_LINUX
 #include "include/sys/linux/LinuxCap.h"
-#include "include/sys/linux/desktopinfo.h"
 #include <QDBusInterface>
 #include <QDBusReply>
 #include <QUuid>
@@ -1910,8 +1909,7 @@ QPixmap grabScreen(QScreen* screen, bool& ok)
     QPixmap p;
     QRect geom = screen->geometry();
 #ifdef Q_OS_LINUX
-    DesktopInfo m_info;
-    if (m_info.waylandDetected()) {
+    if (qEnvironmentVariable("XDG_SESSION_TYPE") == "wayland" || qEnvironmentVariable("WAYLAND_DISPLAY").contains("wayland", Qt::CaseInsensitive)) {
         QDBusInterface screenshotInterface(
           QStringLiteral("org.freedesktop.portal.Desktop"),
           QStringLiteral("/org/freedesktop/portal/desktop"),