1 files changed, 10 insertions, 0 deletions
diff --git a/indra/newview/llviewerwindow.cpp b/indra/newview/llviewerwindow.cpp
index cc10d08f3a..5b764f97fb 100644
--- a/indra/newview/llviewerwindow.cpp
+++ b/indra/newview/llviewerwindow.cpp
@@ -1763,6 +1763,16 @@ LLViewerWindow::LLViewerWindow(const Params& p)
 	LLCoordScreen scr;
     mWindow->getSize(&scr);
 
+    // Reset UI scale factor on first run if OS's display scaling is not 100%
+    if (gSavedSettings.getBOOL("ResetUIScaleOnFirstRun"))
+    {
+        if (mWindow->getSystemUISize() != 1.f)
+        {
+            gSavedSettings.setF32("UIScaleFactor", 1.f);
+        }
+        gSavedSettings.setBOOL("ResetUIScaleOnFirstRun", FALSE);
+    }
+
 	// Get the real window rect the window was created with (since there are various OS-dependent reasons why
 	// the size of a window or fullscreen context may have been adjusted slightly...)
 	F32 ui_scale_factor = llclamp(gSavedSettings.getF32("UIScaleFactor"), MIN_UI_SCALE, MAX_UI_SCALE) * mWindow->getSystemUISize();