From 5fbd4202373fa0bf0f120eaa805caa6b40c5e2b4 Mon Sep 17 00:00:00 2001
From: Joshua Tam <297250+joshuatam@users.noreply.github.com>
Date: Mon, 23 Dec 2024 00:34:48 +0900
Subject: [PATCH] do not apply rotation if the screen is not portrait screen

---
 src/Backends/DRMBackend.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/Backends/DRMBackend.cpp b/src/Backends/DRMBackend.cpp
index 397f5de19f..f24ee77430 100644
--- a/src/Backends/DRMBackend.cpp
+++ b/src/Backends/DRMBackend.cpp
@@ -3031,11 +3031,13 @@ bool drm_set_mode( struct drm_t *drm, const drmModeModeInfo *mode )
 		g_nOutputWidth = mode->hdisplay;
 		g_nOutputHeight = mode->vdisplay;
 
-		if (g_bUseRotationShader) {
+		if (g_bUseRotationShader && mode->vdisplay > mode->hdisplay) {
 			g_bRotated = true;
 			g_nOutputWidth = mode->vdisplay;
 			g_nOutputHeight = mode->hdisplay;
-		}
+		} else {
+            g_bUseRotationShader = false;
+    	}
 
 		break;
 	case GAMESCOPE_PANEL_ORIENTATION_90: