diff --git a/common/utils.cpp b/common/utils.cpp
--- a/common/utils.cpp
+++ b/common/utils.cpp
@@ -33,22 +33,34 @@
 
 QString Utils::outputName(const KScreen::Output *output)
 {
+    const auto concatWithSpace = [](const QString &current, const QString &toAppend) -> QString {
+        const auto toAppendTrimmed = toAppend.trimmed();
+        // If we already have some text in "current", append a space and the new text.
+        if (!current.isEmpty() && !toAppendTrimmed.isEmpty()) {
+            return current + QLatin1Char(' ') + toAppendTrimmed;
+        // If we already have some text, but there's nothing to append, return the original text.
+        } else if (!current.isEmpty() && toAppendTrimmed.isEmpty()) {
+            return current;
+        }
+
+        // Otherwise return just the new text (might be an empty string, but that's OK)
+        return toAppendTrimmed;
+    };
+
     if (output->type() == KScreen::Output::Panel) {
         return i18n("Laptop Screen");
     }
 
     if (output->edid()) {
         // The name will be "VendorName ModelName (ConnectorName)",
         // but some components may be empty.
         QString name;
-        if (!(output->edid()->vendor().isEmpty())) {
-            name = output->edid()->vendor() + QLatin1Char(' ');
-        }
-        if (!output->edid()->name().isEmpty()) {
-            name += output->edid()->name() + QLatin1Char(' ');
-        }
-        if (!name.trimmed().isEmpty()) {
-            return name + QLatin1Char('(') + output->name() + QLatin1Char(')');
+        name = concatWithSpace(name, output->edid()->vendor());
+        name = concatWithSpace(name, output->edid()->name());
+
+        // Don't append (ConnectorName) if its the same as "VendorName ModelName".
+        if (!name.isEmpty() && name != output->name()) {
+            return concatWithSpace(name, QLatin1Char('(') + output->name() + QLatin1Char(')'));
         }
     }
     return output->name();