diff --git a/abstract_output.h b/abstract_output.h
--- a/abstract_output.h
+++ b/abstract_output.h
@@ -109,6 +109,10 @@
 
 protected:
     void initWaylandOutput();
+    void initWaylandOutputDevice(const QString &model,
+                                 const QString &manufacturer,
+                                 const QByteArray &uuid,
+                                 const QVector<KWayland::Server::OutputDeviceInterface::Mode> &modes);
 
     QPointer<KWayland::Server::XdgOutputInterface> xdgOutput() const {
         return m_xdgOutput;
@@ -118,7 +122,6 @@
     QPointer<KWayland::Server::OutputDeviceInterface> waylandOutputDevice() const {
         return m_waylandOutputDevice;
     }
-    void setWaylandOutputDevice(KWayland::Server::OutputDeviceInterface *set);
 
     QPoint globalPos() const {
         return m_globalPos;
diff --git a/abstract_output.cpp b/abstract_output.cpp
--- a/abstract_output.cpp
+++ b/abstract_output.cpp
@@ -152,11 +152,6 @@
     m_xdgOutput = waylandServer()->xdgOutputManager()->createXdgOutput(m_waylandOutput, m_waylandOutput);
 }
 
-void AbstractOutput::setWaylandOutputDevice(KWayland::Server::OutputDeviceInterface *set)
-{
-    m_waylandOutputDevice = set;
-}
-
 void AbstractOutput::initWaylandOutput()
 {
     Q_ASSERT(m_waylandOutputDevice);
@@ -203,4 +198,33 @@
     );
 }
 
+void AbstractOutput::initWaylandOutputDevice(const QString &model,
+                                             const QString &manufacturer,
+                                             const QByteArray &uuid,
+                                             const QVector<KWayland::Server::OutputDeviceInterface::Mode> &modes)
+{
+    if (!m_waylandOutputDevice.isNull()) {
+        delete m_waylandOutputDevice.data();
+        m_waylandOutputDevice.clear();
+    }
+    m_waylandOutputDevice = waylandServer()->display()->createOutputDevice();
+    m_waylandOutputDevice->setUuid(uuid);
+
+    if (!manufacturer.isEmpty()) {
+        m_waylandOutputDevice->setManufacturer(manufacturer);
+    } else {
+        m_waylandOutputDevice->setManufacturer(i18n("unknown"));
+    }
+
+    m_waylandOutputDevice->setModel(model);
+    m_waylandOutputDevice->setPhysicalSize(m_physicalSize);
+
+    int i = 0;
+    for (auto mode : modes) {
+        qCDebug(KWIN_CORE).nospace() << "Adding mode " << ++i << ": " << mode.size << " [" << mode.refreshRate << "]";
+        m_waylandOutputDevice->addMode(mode);
+    }
+    m_waylandOutputDevice->create();
+}
+
 }
diff --git a/plugins/platforms/drm/drm_output.cpp b/plugins/platforms/drm/drm_output.cpp
--- a/plugins/platforms/drm/drm_output.cpp
+++ b/plugins/platforms/drm/drm_output.cpp
@@ -331,41 +331,31 @@
 
 void DrmOutput::initOutputDevice(drmModeConnector *connector)
 {
-    auto wlOutputDevice = waylandOutputDevice();
-    if (!wlOutputDevice.isNull()) {
-        delete wlOutputDevice.data();
-        wlOutputDevice.clear();
-    }
-    wlOutputDevice = waylandServer()->display()->createOutputDevice();
-    wlOutputDevice->setUuid(m_uuid);
-
+    QString manufacturer;
     if (!m_edid.eisaId.isEmpty()) {
-        wlOutputDevice->setManufacturer(QString::fromLatin1(m_edid.eisaId));
-    } else {
-        wlOutputDevice->setManufacturer(i18n("unknown"));
+        manufacturer = QString::fromLatin1(m_edid.eisaId);
     }
 
     QString connectorName = s_connectorNames.value(connector->connector_type, QByteArrayLiteral("Unknown"));
     QString modelName;
 
     if (!m_edid.monitorName.isEmpty()) {
-        QString model = QString::fromLatin1(m_edid.monitorName);
+        QString m = QString::fromLatin1(m_edid.monitorName);
         if (!m_edid.serialNumber.isEmpty()) {
-            model.append('/');
-            model.append(QString::fromLatin1(m_edid.serialNumber));
+            m.append('/');
+            m.append(QString::fromLatin1(m_edid.serialNumber));
         }
-        modelName = model;
+        modelName = m;
     } else if (!m_edid.serialNumber.isEmpty()) {
         modelName = QString::fromLatin1(m_edid.serialNumber);
     } else {
         modelName = i18n("unknown");
     }
 
-    wlOutputDevice->setModel(connectorName + QStringLiteral("-") + QString::number(connector->connector_type_id) + QStringLiteral("-") + modelName);
-
-    wlOutputDevice->setPhysicalSize(rawPhysicalSize());
+    const QString model = connectorName + QStringLiteral("-") + QString::number(connector->connector_type_id) + QStringLiteral("-") + modelName;
 
     // read in mode information
+    QVector<KWayland::Server::OutputDeviceInterface::Mode> modes;
     for (int i = 0; i < connector->count_modes; ++i) {
         // TODO: in AMS here we could read and store for later every mode's blob_id
         // would simplify isCurrentMode(..) and presentAtomically(..) in case of mode set
@@ -378,18 +368,15 @@
             deviceflags |= KWayland::Server::OutputDeviceInterface::ModeFlag::Preferred;
         }
 
-        const auto refreshRate = refreshRateForMode(m);
-
         KWayland::Server::OutputDeviceInterface::Mode mode;
         mode.id = i;
         mode.size = QSize(m->hdisplay, m->vdisplay);
         mode.flags = deviceflags;
-        mode.refreshRate = refreshRate;
-        qCDebug(KWIN_DRM) << "Adding mode: " << i << mode.size;
-        wlOutputDevice->addMode(mode);
+        mode.refreshRate = refreshRateForMode(m);
+        modes << mode;
     }
-    wlOutputDevice->create();
-    setWaylandOutputDevice(wlOutputDevice.data());
+
+    AbstractOutput::initWaylandOutputDevice(model, manufacturer, m_uuid, modes);
 }
 
 bool DrmOutput::isCurrentMode(const drmModeModeInfo *mode) const