diff --git a/src/edid.cpp b/src/edid.cpp
--- a/src/edid.cpp
+++ b/src/edid.cpp
@@ -282,6 +282,9 @@
                     break;
                 }
             }
+        } else {
+            // at least fall back to the short PNP ID
+            vendorName = pnpId;
         }
     }