diff --git a/plugins/platforms/drm/drm_backend.h b/plugins/platforms/drm/drm_backend.h
--- a/plugins/platforms/drm/drm_backend.h
+++ b/plugins/platforms/drm/drm_backend.h
@@ -158,7 +158,7 @@
     void updateCursor();
     void moveCursor();
     void initCursor();
-    void outputDpmsChanged();
+    void updateOutputsEnabled();
     void readOutputsConfiguration();
     QByteArray generateOutputConfigurationUuid() const;
     DrmOutput *findOutput(quint32 connector);
diff --git a/plugins/platforms/drm/drm_backend.cpp b/plugins/platforms/drm/drm_backend.cpp
--- a/plugins/platforms/drm/drm_backend.cpp
+++ b/plugins/platforms/drm/drm_backend.cpp
@@ -461,7 +461,7 @@
                 output->m_conn = con;
                 crtc->setOutput(output);
                 output->m_crtc = crtc;
-                connect(output, &DrmOutput::dpmsChanged, this, &DrmBackend::outputDpmsChanged);
+                connect(output, &DrmOutput::dpmsChanged, this, &DrmBackend::updateOutputsEnabled);
 
                 if (modeCrtc->mode_valid) {
                     output->m_mode = modeCrtc->mode;
@@ -497,6 +497,7 @@
     if (!m_outputs.isEmpty()) {
         emit screensQueried();
     }
+    updateOutputsEnabled();
 }
 
 void DrmBackend::readOutputsConfiguration()
@@ -581,6 +582,7 @@
         emit screens()->changed();
     }
     config->setApplied();
+    updateOutputsEnabled();
 }
 
 DrmOutput *DrmBackend::findOutput(quint32 connector)
@@ -755,11 +757,8 @@
 }
 #endif
 
-void DrmBackend::outputDpmsChanged()
+void DrmBackend::updateOutputsEnabled()
 {
-    if (m_enabledOutputs.isEmpty()) {
-        return;
-    }
     bool enabled = false;
     for (auto it = m_enabledOutputs.constBegin(); it != m_enabledOutputs.constEnd(); ++it) {
         enabled = enabled || (*it)->isDpmsEnabled();