From f63d8bf4fb2745ff92cec05fc21c9644ebd4f1ab Mon Sep 17 00:00:00 2001
From: bbedward <bbedward@gmail.com>
Date: Wed, 21 Oct 2026 10:14:35 -0400
Subject: [PATCH] niri: only emit displayScales when a scale changed

ref #3842
port 2.0

(cherry picked from commit 90d3c9731c8e9265b91c1a369a52f394614cfa5e)
---
 quickshell/Services/NiriService.qml | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/quickshell/Services/NiriService.qml b/quickshell/Services/NiriService.qml
index ff13a51fb..f6ed40744 100644
--- a/quickshell/Services/NiriService.qml
+++ b/quickshell/Services/NiriService.qml
@@ -334,9 +334,18 @@ Singleton {
             }
         }
 
+        if (sameScales(displayScales, scales))
+            return;
         displayScales = scales;
     }
 
+    function sameScales(a, b) {
+        const names = Object.keys(a);
+        if (names.length !== Object.keys(b).length)
+            return false;
+        return names.every(name => a[name] === b[name]);
+    }
+
     function sortWindowsByLayout(windowList) {
         const enriched = windowList.map(w => {
             const ws = workspaces[w.workspace_id];