diff --git a/backends/wayland/screens_wayland.cpp b/backends/wayland/screens_wayland.cpp
index d0c70ddf9e..36c776cb15 100644
--- a/backends/wayland/screens_wayland.cpp
+++ b/backends/wayland/screens_wayland.cpp
@@ -23,12 +23,9 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include <KWayland/Client/output.h>
 #include "logging.h"
 #include "main.h"
-#include "xcbutils.h"
 
 #include <QDebug>
 
-#include <xcb/randr.h>
-
 namespace KWin
 {
 
@@ -103,159 +100,7 @@ void WaylandScreens::updateCount()
         return;
     }
     setCount(m_geometries.count());
-    updateXRandr();
     emit changed();
 }
 
-namespace RandR
-{
-using namespace Xcb;
-XCB_WRAPPER(CurrentResources, xcb_randr_get_screen_resources_current, xcb_window_t)
-}
-
-static bool setNewScreenSize(const QSize &size)
-{
-    auto c = xcb_randr_set_screen_size_checked(connection(), rootWindow(), size.width(), size.height(), 1, 1);
-    ScopedCPointer<xcb_generic_error_t> error(xcb_request_check(connection(), c));
-    if (!error.isNull()) {
-        qCDebug(KWIN_WAYLAND_BACKEND) << "Error setting screen size: " << error->error_code;
-        return false;
-    }
-    return true;
-}
-
-static xcb_randr_crtc_t getCrtc(const xcb_randr_get_screen_resources_current_reply_t* r)
-{
-    if (xcb_randr_get_screen_resources_current_crtcs_length(r) == 0) {
-        qCDebug(KWIN_WAYLAND_BACKEND) << "No CRTCs";
-        return XCB_NONE;
-    }
-    return xcb_randr_get_screen_resources_current_crtcs(r)[0];
-}
-
-static xcb_randr_output_t getOutputForCrtc(xcb_randr_crtc_t crtc)
-{
-    ScopedCPointer<xcb_randr_get_crtc_info_reply_t> info(xcb_randr_get_crtc_info_reply(
-        connection(), xcb_randr_get_crtc_info(connection(), crtc, XCB_TIME_CURRENT_TIME), nullptr));
-    if (info->num_outputs == 0) {
-        return XCB_NONE;
-    }
-    return xcb_randr_get_crtc_info_outputs(info.data())[0];
-}
-
-static xcb_randr_mode_t createNewMode(const QSize &size)
-{
-    // need to create the new mode
-    qCDebug(KWIN_WAYLAND_BACKEND) << "Creating a new mode";
-    QString name(QString::number(size.width()));
-    name.append('x');
-    name.append(QString::number(size.height()));
-    xcb_randr_mode_info_t newInfo;
-    newInfo.dot_clock = 0;
-    newInfo.height = size.height();
-    newInfo.hskew = 0;
-    newInfo.hsync_end = 0;
-    newInfo.hsync_start = 0;
-    newInfo.htotal = size.width();
-    newInfo.id = 0;
-    newInfo.mode_flags = 0;
-    newInfo.vsync_end = 0;
-    newInfo.vsync_start = 0;
-    newInfo.vtotal = size.height();
-    newInfo.width = size.width();
-    newInfo.name_len = name.length();
-    auto cookie = xcb_randr_create_mode_unchecked(connection(), rootWindow(), newInfo, name.length(), name.toUtf8().constData());
-    ScopedCPointer<xcb_randr_create_mode_reply_t> reply(xcb_randr_create_mode_reply(connection(), cookie, nullptr));
-    if (!reply.isNull()) {
-        return reply->mode;
-    }
-    return XCB_NONE;
-}
-
-static xcb_randr_mode_t getModeForSize(const QSize &size, const xcb_randr_get_screen_resources_current_reply_t* r)
-{
-    xcb_randr_mode_info_t *infos = xcb_randr_get_screen_resources_current_modes(r);
-    const int modeInfoLength = xcb_randr_get_screen_resources_current_modes_length(r);
-    // check available modes
-    for (int i = 0; i < modeInfoLength; ++i) {
-        xcb_randr_mode_info_t modeInfo = infos[i];
-        if (modeInfo.width == size.width() && modeInfo.height == size.height()) {
-            qCDebug(KWIN_WAYLAND_BACKEND) << "Found our required mode";
-            return modeInfo.id;
-        }
-    }
-    // did not find our mode, so create it
-    return createNewMode(size);
-}
-
-static bool addModeToOutput(xcb_randr_output_t output, xcb_randr_mode_t mode)
-{
-    ScopedCPointer<xcb_randr_get_output_info_reply_t> info(xcb_randr_get_output_info_reply(connection(),
-        xcb_randr_get_output_info(connection(), output, XCB_TIME_CURRENT_TIME), nullptr));
-    xcb_randr_mode_t *modes = xcb_randr_get_output_info_modes(info.data());
-    for (int i = 0; i < info->num_modes; ++i) {
-        if (modes[i] == mode) {
-            return true;
-        }
-    }
-    qCDebug(KWIN_WAYLAND_BACKEND) << "Need to add the mode to output";
-    auto c = xcb_randr_add_output_mode_checked(connection(), output, mode);
-    ScopedCPointer<xcb_generic_error_t> error(xcb_request_check(connection(), c));
-    if (!error.isNull()) {
-        qCDebug(KWIN_WAYLAND_BACKEND) << "Error while adding mode to output: " << error->error_code;
-        return false;
-    }
-    return true;
-}
-
-void WaylandScreens::updateXRandr()
-{
-    if (kwinApp()->operationMode() == Application::OperationModeXwayland) {
-        // no need to update, will be done automagically by Xwayland
-        return;
-    }
-    if (!Xcb::Extensions::self()->isRandrAvailable()) {
-        qCDebug(KWIN_WAYLAND_BACKEND) << "No RandR extension available, cannot sync with X";
-        return;
-    }
-    QRegion screens;
-    foreach (const QRect &rect, m_geometries) {
-        screens = screens.united(rect);
-    }
-    const QSize &size = screens.boundingRect().size();
-    if (size.isEmpty()) {
-        return;
-    }
-
-    RandR::CurrentResources currentResources(rootWindow());
-    xcb_randr_crtc_t crtc = getCrtc(currentResources.data());
-    if (crtc == XCB_NONE) {
-        return;
-    }
-    xcb_randr_output_t output = getOutputForCrtc(crtc);
-    if (output == XCB_NONE) {
-        return;
-    }
-    // first disable the first CRTC
-    xcb_randr_set_crtc_config(connection(), crtc, XCB_TIME_CURRENT_TIME, XCB_TIME_CURRENT_TIME,
-                              0, 0, XCB_NONE, XCB_RANDR_ROTATION_ROTATE_0, 0, nullptr);
-
-    // then set new screen size
-    if (!setNewScreenSize(size)) {
-        return;
-    }
-
-    xcb_randr_mode_t mode = getModeForSize(size, currentResources.data());
-    if (mode == XCB_NONE) {
-        return;
-    }
-
-    if (!addModeToOutput(output, mode)) {
-        return;
-    }
-    // enable CRTC again
-    xcb_randr_set_crtc_config(connection(), crtc, XCB_TIME_CURRENT_TIME, XCB_TIME_CURRENT_TIME,
-                              0, 0, mode, XCB_RANDR_ROTATION_ROTATE_0, 1, &output);
-}
-
 }
diff --git a/backends/wayland/screens_wayland.h b/backends/wayland/screens_wayland.h
index ae3c05bcd4..fbc2556b97 100644
--- a/backends/wayland/screens_wayland.h
+++ b/backends/wayland/screens_wayland.h
@@ -44,7 +44,6 @@ public:
 protected Q_SLOTS:
     void updateCount() override;
 private:
-    void updateXRandr();
     Wayland::WaylandBackend *m_backend;
     QList<QRect> m_geometries;
 };