From b76b32b458ab6e67632a110758ac5fe6e3701948 Mon Sep 17 00:00:00 2001
From: vaxerski <43317083+vaxerski@users.noreply.github.com>
Date: Sun, 29 May 2022 20:15:34 +0200
Subject: don't add existing and invalid monitors

---
 src/events/Monitors.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'src/events/Monitors.cpp')

diff --git a/src/events/Monitors.cpp b/src/events/Monitors.cpp
index 3acea781..2e05d278 100644
--- a/src/events/Monitors.cpp
+++ b/src/events/Monitors.cpp
@@ -48,6 +48,16 @@ void Events::listener_newOutput(wl_listener* listener, void* data) {
     // new monitor added, let's accomodate for that.
     const auto OUTPUT = (wlr_output*)data;
 
+    if (!OUTPUT->name) {
+        Debug::log(ERR, "New monitor has no name?? Ignoring");
+        return;
+    }
+
+    if (g_pCompositor->getMonitorFromName(std::string(OUTPUT->name))) {
+        Debug::log(WARN, "Monitor with name %s already exists, not adding as new!", OUTPUT->name);
+        return;
+    }
+
     // get monitor rule that matches
     SMonitorRule monitorRule = g_pConfigManager->getMonitorRuleFor(OUTPUT->name);
 
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