Disable the DRM master hooks when EGLFS isn't used

app/main.cpp

@@ -85,6 +85,10 @@ static QAtomicInteger<uint64_t> s_LogBytesWritten = 0;
 static QFile* s_LoggerFile;
 #endif
 
+#ifdef HAVE_DRM_MASTER_HOOKS
+extern "C" bool g_DisableDrmHooks;
+#endif
+
 class LoggerTask : public QRunnable
 {
 public:
@@ -789,6 +793,11 @@ int main(int argc, char *argv[])
     }
 #endif
 
+#ifdef HAVE_DRM_MASTER_HOOKS
+    // Only use the Qt-SDL DRM master interoperability hooks if Qt is using KMS
+    g_DisableDrmHooks = QGuiApplication::platformName() != "eglfs";
+#endif
+
 #ifdef STEAM_LINK
     // Qt 5.9 from the Steam Link SDK is not able to load any fonts
     // since the Steam Link doesn't include any of the ones it looks