Limit VRR policy in support information only to Wayland session

Adaptive sync is only supported on Wayland.

BUG: 436623

src/screens.cpp

@@ -279,7 +279,9 @@ RenderLoop::VrrPolicy Screens::vrrPolicy(int screen) const
     return RenderLoop::VrrPolicy::Never;
 #else
     if (auto output = findOutput(screen)) {
-        return output->renderLoop()->vrrPolicy();
+        if (auto waylandOutput = dynamic_cast<AbstractWaylandOutput *>(output)) {
+            return waylandOutput->vrrPolicy();
+        }
     }
     return RenderLoop::VrrPolicy::Never;
 #endif

src/workspace.cpp

@@ -1538,21 +1538,23 @@ QString Workspace::supportInformation() const
                               .arg(geo.height()));
         support.append(QStringLiteral("Scale: %1\n").arg(screens()->scale(i)));
         support.append(QStringLiteral("Refresh Rate: %1\n").arg(screens()->refreshRate(i)));
-        QString vrr = QStringLiteral("incapable");
-        if (screens()->isVrrCapable(i)) {
-            switch(screens()->vrrPolicy(i)) {
-            case RenderLoop::VrrPolicy::Never:
-                vrr = QStringLiteral("never");
-                break;
-            case RenderLoop::VrrPolicy::Always:
-                vrr = QStringLiteral("always");
-                break;
-            case RenderLoop::VrrPolicy::Automatic:
-                vrr = QStringLiteral("automatic");
-                break;
+        if (waylandServer()) {
+            QString vrr = QStringLiteral("incapable");
+            if (screens()->isVrrCapable(i)) {
+                switch(screens()->vrrPolicy(i)) {
+                case RenderLoop::VrrPolicy::Never:
+                    vrr = QStringLiteral("never");
+                    break;
+                case RenderLoop::VrrPolicy::Always:
+                    vrr = QStringLiteral("always");
+                    break;
+                case RenderLoop::VrrPolicy::Automatic:
+                    vrr = QStringLiteral("automatic");
+                    break;
+                }
             }
+            support.append(QStringLiteral("Adaptive Sync: %1\n").arg(vrr));
         }
-        support.append(QStringLiteral("Adaptive Sync: %1\n").arg(vrr));
     }
     support.append(QStringLiteral("\nCompositing\n"));
     support.append(QStringLiteral(  "===========\n"));