diff --git a/krfb/CMakeLists.txt b/krfb/CMakeLists.txt
--- a/krfb/CMakeLists.txt
+++ b/krfb/CMakeLists.txt
@@ -68,6 +68,7 @@
 ki18n_wrap_ui (krfb_SRCS
                    ui/configtcp.ui
                    ui/configsecurity.ui
+                   ui/configframebuffer.ui
                    ui/connectionwidget.ui
                    ui/mainwidget.ui
 )
diff --git a/krfb/framebuffermanager.cpp b/krfb/framebuffermanager.cpp
--- a/krfb/framebuffermanager.cpp
+++ b/krfb/framebuffermanager.cpp
@@ -71,25 +71,25 @@
     i.toBack();
     QSet<QString> unique;
     while (i.hasPrevious()) {
-	KPluginMetaData data = i.previous();
+        const KPluginMetaData &data = i.previous();
         // only load plugins once, even if found multiple times!
         if (unique.contains(data.name()))
             continue;
-	KPluginFactory *factory = KPluginLoader(data.fileName()).factory();
-	
-	if (!factory) {
-		qDebug() << "KPluginFactory could not load the plugin:" << data.fileName();
-	} else {
-		qDebug() << "found plugin at " << data.fileName();
-	}
-	
-	FrameBufferPlugin *plugin = factory->create<FrameBufferPlugin>(this);
-	if (plugin) {
-		m_plugins.insert(data.pluginId(), plugin);
-		qDebug() << "Loaded plugin with name " << data.pluginId();
-	} else {
-		qDebug() << "unable to load pluign for " << data.fileName();
-	}
+        KPluginFactory *factory = KPluginLoader(data.fileName()).factory();
+
+        if (!factory) {
+            qDebug() << "KPluginFactory could not load the plugin:" << data.fileName();
+        } else {
+            qDebug() << "found plugin at " << data.fileName();
+        }
+
+        FrameBufferPlugin *plugin = factory->create<FrameBufferPlugin>(this);
+        if (plugin) {
+            m_plugins.insert(data.pluginId(), plugin);
+            qDebug() << "Loaded plugin with name " << data.pluginId();
+        } else {
+            qDebug() << "unable to load pluign for " << data.fileName();
+        }
         unique.insert (data.name());
     }
 }
diff --git a/krfb/main.cpp b/krfb/main.cpp
--- a/krfb/main.cpp
+++ b/krfb/main.cpp
@@ -56,6 +56,21 @@
     return true;
 }
 
+
+static void checkOldX11PluginConfig() {
+    if (KrfbConfig::preferredFrameBufferPlugin() == QStringLiteral("x11")) {
+        qDebug() << "Detected deprecated configuration: preferredFrameBufferPlugin = x11";
+        KConfigSkeletonItem *config_item = KrfbConfig::self()->findItem(
+                    QStringLiteral("preferredFrameBufferPlugin"));
+        if (config_item) {
+            config_item->setProperty(QStringLiteral("xcb"));
+            KrfbConfig::self()->save();
+            qDebug() << "  Fixed preferredFrameBufferPlugin from x11 to xcb.";
+        }
+    }
+}
+
+
 int main(int argc, char *argv[])
 {
     QApplication app(argc, argv);
@@ -109,6 +124,9 @@
         return 1;
     }
 
+    // upgrade the configuration
+    checkOldX11PluginConfig();
+
     //init the core
     InvitationsRfbServer::init();
 
diff --git a/krfb/mainwindow.cpp b/krfb/mainwindow.cpp
--- a/krfb/mainwindow.cpp
+++ b/krfb/mainwindow.cpp
@@ -13,20 +13,28 @@
 #include "krfbconfig.h"
 #include "ui_configtcp.h"
 #include "ui_configsecurity.h"
+#include "ui_configframebuffer.h"
 
 #include <KConfigDialog>
 #include <KLocalizedString>
 #include <KMessageBox>
 #include <KStandardAction>
 #include <KActionCollection>
 #include <KLineEdit>
 #include <KNewPasswordDialog>
+#include <KPluginLoader>
+#include <KPluginMetaData>
 
 #include <QIcon>
 #include <QWidget>
+#include <QLineEdit>
+#include <QComboBox>
 #include <QSizePolicy>
+#include <QVector>
+#include <QSet>
 #include <QtNetwork/QNetworkInterface>
 
+
 class TCP: public QWidget, public Ui::TCP
 {
 public:
@@ -43,6 +51,40 @@
     }
 };
 
+class ConfigFramebuffer: public QWidget, public Ui::Framebuffer
+{
+public:
+    ConfigFramebuffer(QWidget *parent = 0) : QWidget(parent) {
+        setupUi(this);
+        // hide the line edit with framebuffer string
+        kcfg_preferredFrameBufferPlugin->hide();
+        // fill drop-down combo with a list of real existing plugins
+        this->fillFrameBuffersCombo();
+        // initialize combo with currently configured framebuffer plugin
+        cb_preferredFrameBufferPlugin->setCurrentText(KrfbConfig::preferredFrameBufferPlugin());
+        // connect signals between combo<->lineedit
+        // if we change selection in combo, lineedit is updated
+        QObject::connect(cb_preferredFrameBufferPlugin, &QComboBox::currentTextChanged,
+                         kcfg_preferredFrameBufferPlugin, &QLineEdit::setText);
+    }
+
+    void fillFrameBuffersCombo() {
+        const QVector<KPluginMetaData> plugins = KPluginLoader::findPlugins(
+                    QStringLiteral("krfb"), [](const KPluginMetaData & md) {
+            return md.serviceTypes().contains(QStringLiteral("krfb/framebuffer"));
+        });
+        QSet<QString> unique;
+        QVectorIterator<KPluginMetaData> i(plugins);
+        i.toBack();
+        while (i.hasPrevious()) {
+            const KPluginMetaData &metadata = i.previous();
+            if (unique.contains(metadata.pluginId())) continue;
+            cb_preferredFrameBufferPlugin->addItem(metadata.pluginId());
+            unique.insert(metadata.pluginId());
+        }
+    }
+};
+
 
 MainWindow::MainWindow(QWidget *parent)
     : KXmlGuiWindow(parent)
@@ -183,14 +225,28 @@
 
 void MainWindow::showConfiguration()
 {
+    static QString s_prevFramebufferPlugin;
+    // ^^ needs to be static, because lambda will be called long time
+    //    after showConfiguration() ends, so auto variable would go out of scope
+    // save previously selected framebuffer plugin config
+    s_prevFramebufferPlugin = KrfbConfig::preferredFrameBufferPlugin();
+
     if (KConfigDialog::showDialog("settings")) {
         return;
     }
 
     KConfigDialog *dialog = new KConfigDialog(this, "settings", KrfbConfig::self());
-    dialog->addPage(new TCP, i18n("Network"), "network-workgroup");
+    dialog->addPage(new TCP, i18n("Network"), "network-wired");
     dialog->addPage(new Security, i18n("Security"), "security-high");
+    dialog->addPage(new ConfigFramebuffer, i18n("Screen capture"), "video-display");
     dialog->show();
+    connect(dialog, &KConfigDialog::settingsChanged, [this] () {
+        // check if framebuffer plugin config has changed
+        if (s_prevFramebufferPlugin != KrfbConfig::preferredFrameBufferPlugin()) {
+            KMessageBox::information(this, i18n("To apply framebuffer plugin setting, "
+                                                "you need to restart the program."));
+        }
+    });
 }
 
 void MainWindow::readProperties(const KConfigGroup& group)
diff --git a/krfb/ui/configframebuffer.ui b/krfb/ui/configframebuffer.ui
new file mode 100644
--- /dev/null
+++ b/krfb/ui/configframebuffer.ui
@@ -0,0 +1,90 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>Framebuffer</class>
+ <widget class="QWidget" name="Framebuffer">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>418</width>
+    <height>186</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Framebuffer</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout">
+     <item>
+      <widget class="QLabel" name="label">
+       <property name="text">
+        <string>Preferred frameb&amp;uffer plugin:</string>
+       </property>
+       <property name="buddy">
+        <cstring>cb_preferredFrameBufferPlugin</cstring>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QComboBox" name="cb_preferredFrameBufferPlugin">
+       <property name="editable">
+        <bool>false</bool>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QLineEdit" name="kcfg_preferredFrameBufferPlugin"/>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <widget class="QLabel" name="helpText">
+     <property name="enabled">
+      <bool>true</bool>
+     </property>
+     <property name="text">
+      <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;When using x11, &lt;span style=&quot; font-weight:600;&quot;&gt;xcb&lt;/span&gt; plugin should be preferred, because it is more performant.&lt;br/&gt;&lt;span style=&quot; font-weight:600;&quot;&gt;qt&lt;/span&gt; plugin is a safe fallback, if for some reason others don't work. But also it is very slow.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+     </property>
+     <property name="textFormat">
+      <enum>Qt::RichText</enum>
+     </property>
+     <property name="scaledContents">
+      <bool>false</bool>
+     </property>
+     <property name="alignment">
+      <set>Qt::AlignLeading|Qt::AlignLeft|Qt::AlignVCenter</set>
+     </property>
+     <property name="wordWrap">
+      <bool>true</bool>
+     </property>
+     <property name="margin">
+      <number>5</number>
+     </property>
+     <property name="textInteractionFlags">
+      <set>Qt::NoTextInteraction</set>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <spacer name="verticalSpacer">
+     <property name="orientation">
+      <enum>Qt::Vertical</enum>
+     </property>
+     <property name="sizeHint" stdset="0">
+      <size>
+       <width>20</width>
+       <height>63</height>
+      </size>
+     </property>
+    </spacer>
+   </item>
+  </layout>
+ </widget>
+ <tabstops>
+  <tabstop>cb_preferredFrameBufferPlugin</tabstop>
+  <tabstop>kcfg_preferredFrameBufferPlugin</tabstop>
+ </tabstops>
+ <resources/>
+ <connections/>
+</ui>