Don't check atomic property non_desktop when not using atomic mode setting

plugins/platforms/drm/drm_gpu.cpp

@@ -131,13 +131,15 @@ bool DrmGpu::updateOutputs()
         auto it = std::find_if(m_connectors.constBegin(), m_connectors.constEnd(), [currentConnector] (DrmConnector *c) { return c->id() == currentConnector; });
         if (it == m_connectors.constEnd()) {
             auto c = new DrmConnector(currentConnector, m_fd);
-            if (m_atomicModeSetting && !c->atomicInit()) {
-                delete c;
-                continue;
-            }
-            if (c->isNonDesktop()) {
-                delete c;
-                continue;
+            if (m_atomicModeSetting) {
+                if (!c->atomicInit()) {
+                    delete c;
+                    continue;
+                }
+                if (c->isNonDesktop()) {
+                    delete c;
+                    continue;
+                }
             }
             m_connectors << c;
         } else {

plugins/platforms/drm/drm_object_connector.h

@@ -37,7 +37,11 @@ public:
     bool isConnected();
     
     bool isNonDesktop() const {
-        return m_props.at(static_cast<int>(PropertyIndex::NonDesktop))->value();
+        auto prop = m_props.at(static_cast<int>(PropertyIndex::NonDesktop));
+        if (!prop) {
+            return false;
+        }
+        return prop->value();
     }
 private:
     QVector<uint32_t> m_encoders;