3 files changed, 13 insertions, 1 deletions
diff --git a/src/main.cpp b/src/main.cpp
index db82370..ac28a68 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -70,7 +70,7 @@ int main(int argc, char *argv[])
 	Widget *w = nullptr;
 	if (CommandLine::backgroundMode() || CommandLine::showGui()) {
 		w = new Widget();
-		if (CommandLine::showGui()) {
+		if (CommandLine::showGui() || ScreenSetup::inst()->hasScreenWithoutEdid()) {
 			w->show();
 		}
 	}
diff --git a/src/xx.cpp b/src/xx.cpp
index e5749d5..8be1d96 100644
--- a/src/xx.cpp
+++ b/src/xx.cpp
@@ -318,6 +318,17 @@ ScreenMode ScreenSetup::getCurrentMode()
 	return ScreenMode::Clone;
 }
 
+bool ScreenSetup::hasScreenWithoutEdid()
+{
+	for (auto oi : a->_outputMap) {
+		// no preferred modes pretty much means no EDID, although technically I think you could have EDID
+		// that doesn't provide a preferred mode...
+		if (oi->output != nullptr && oi->output->connection != RR_Disconnected && oi->output->npreferred == 0)
+			return true;
+	}
+	return false;
+}
+
 ConfigBackup ScreenSetup::setDefaultMode(bool dryRun, ScreenMode &mode)
 {
     ConfigBackup retval;
diff --git a/src/xx.h b/src/xx.h
index 8bd151e..0ca91d9 100644
--- a/src/xx.h
+++ b/src/xx.h
@@ -67,6 +67,7 @@ public:
 	void         updateScreenResources();
 	void         initModes();
 	ScreenMode   getCurrentMode();
+	bool         hasScreenAndSecondDeviceWithoutEdidSoItCouldBeAProjector();
     ConfigBackup setDefaultMode(bool dryRun, ScreenMode &mode);
     bool         createMode(unsigned int resX, unsigned int resY, float refresh, QString name);
     ConfigBackup setCenteredClone();