From 05f3eebd968455752eb95cee373bbf2d9a71deae Mon Sep 17 00:00:00 2001
From: vaxerski <43317083+vaxerski@users.noreply.github.com>
Date: Sat, 29 Oct 2022 12:24:44 +0100
Subject: [PATCH] avoid layout changes when unnecessary in applyMonitorRule

---
 src/render/Renderer.cpp | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/src/render/Renderer.cpp b/src/render/Renderer.cpp
index 3247e499..24e6accd 100644
--- a/src/render/Renderer.cpp
+++ b/src/render/Renderer.cpp
@@ -1214,16 +1214,21 @@ bool CHyprRenderer::applyMonitorRule(CMonitor* pMonitor, SMonitorRule* pMonitorR
         pMonitor->vecPosition = pMonitorRule->offset;
     }
 
-    if (!pMonitor->isMirror())
-        wlr_output_layout_add(g_pCompositor->m_sWLROutputLayout, pMonitor->output, (int)pMonitor->vecPosition.x, (int)pMonitor->vecPosition.y);
-
     wlr_output_enable(pMonitor->output, true);
 
     // update renderer (here because it will call rollback, so we cannot do this before committing)
     g_pHyprOpenGL->destroyMonitorResources(pMonitor);
 
     // updato wlroots
-    Events::listener_change(nullptr, nullptr);
+    if (!pMonitor->isMirror()) {
+        wlr_box box = {0, 0, 0, 0};
+        wlr_output_layout_get_box(g_pCompositor->m_sWLROutputLayout, pMonitor->output, &box);
+
+        if (!DELTALESSTHAN(box.x, pMonitor->vecPosition.x, 1) || !DELTALESSTHAN(box.y, pMonitor->vecPosition.y, 1)) {
+            wlr_output_layout_add(g_pCompositor->m_sWLROutputLayout, pMonitor->output, (int)pMonitor->vecPosition.x, (int)pMonitor->vecPosition.y);
+            Events::listener_change(nullptr, nullptr);
+        }
+    }
 
     // updato us
     arrangeLayersForMonitor(pMonitor->ID);